Update charmcraft.yaml build tools (#414)

This PR contains the following updates:

| Package | Update | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|---|
| [rust-lang/rust](https://redirect.github.com/rust-lang/rust) | patch |
`1.85.0` -> `1.85.1` |
[![age](https://developer.mend.io/api/mc/badges/age/github-releases/rust-lang%2frust/1.85.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/github-releases/rust-lang%2frust/1.85.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/github-releases/rust-lang%2frust/1.85.0/1.85.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/github-releases/rust-lang%2frust/1.85.0/1.85.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
| [uv](https://pypi.org/project/uv/)
([source](https://redirect.github.com/astral-sh/uv),
[changelog](https://redirect.github.com/astral-sh/uv/blob/main/CHANGELOG.md))
| patch | `0.6.7` -> `0.6.9` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/uv/0.6.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/uv/0.6.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/uv/0.6.7/0.6.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/uv/0.6.7/0.6.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>rust-lang/rust (rust-lang/rust)</summary>

###
[`v1.85.1`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1851-2025-03-18)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.85.0...1.85.1)

\==========================

<a id="1.85.1"></a>

- [Fix the doctest-merging feature of the 2024
Edition.](https://redirect.github.com/rust-lang/rust/pull/137899/)
- [Relax some `target_feature` checks when generating
docs.](https://redirect.github.com/rust-lang/rust/pull/137632/)
- [Fix errors in `std::fs::rename` on Windows 10, version
1607.](https://redirect.github.com/rust-lang/rust/pull/137528/)
- [Downgrade bootstrap `cc` to fix custom
targets.](https://redirect.github.com/rust-lang/rust/pull/137460/)
- [Skip submodule updates when building Rust from a source
tarball.](https://redirect.github.com/rust-lang/rust/pull/137338/)

</details>

<details>
<summary>astral-sh/uv (uv)</summary>

###
[`v0.6.9`](https://redirect.github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#069)

[Compare
Source](https://redirect.github.com/astral-sh/uv/compare/0.6.8...0.6.9)

##### Enhancements

- Use `keyring --mode creds` when `authenticate = "always"`
([#&#8203;12316](https://redirect.github.com/astral-sh/uv/pull/12316))
- Fail with specific error message when no password is present and
`authenticate = "always"`
([#&#8203;12313](https://redirect.github.com/astral-sh/uv/pull/12313))

##### Bug fixes

- Add boolish value parser for `UV_MANAGED_PYTHON` flags
([#&#8203;12345](https://redirect.github.com/astral-sh/uv/pull/12345))
- Make deserialization non-fatal when assessing source tree revisions
([#&#8203;12319](https://redirect.github.com/astral-sh/uv/pull/12319))
- Use resolver-returned wheel over alternate cached wheel
([#&#8203;12301](https://redirect.github.com/astral-sh/uv/pull/12301))

##### Documentation

- Add experimental `--torch-backend` to the PyTorch guide
([#&#8203;12317](https://redirect.github.com/astral-sh/uv/pull/12317))
- Fix `#keyring-provider` references in alternative index docs
([#&#8203;12315](https://redirect.github.com/astral-sh/uv/pull/12315))
- Fix `--directory` path in examples
([#&#8203;12165](https://redirect.github.com/astral-sh/uv/pull/12165))

##### Preview changes

- Automatically infer the PyTorch index via `--torch-backend=auto`
([#&#8203;12070](https://redirect.github.com/astral-sh/uv/pull/12070))

###
[`v0.6.8`](https://redirect.github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#068)

[Compare
Source](https://redirect.github.com/astral-sh/uv/compare/0.6.7...0.6.8)

##### Enhancements

- Add support for enabling all groups by default with `default-groups =
"all"`
([#&#8203;12289](https://redirect.github.com/astral-sh/uv/pull/12289))
- Add simpler `--managed-python` and `--no-managed-python` flags for
toggling Python preferences
([#&#8203;12246](https://redirect.github.com/astral-sh/uv/pull/12246))

##### Performance

- Avoid allocations for default cache keys
([#&#8203;12063](https://redirect.github.com/astral-sh/uv/pull/12063))

##### Bug fixes

- Allow local version mismatches when validating lockfile
([#&#8203;12285](https://redirect.github.com/astral-sh/uv/pull/12285))
- Allow owned string when deserializing `requires-python`
([#&#8203;12278](https://redirect.github.com/astral-sh/uv/pull/12278))
- Make cache errors non-fatal in `Planner::build`
([#&#8203;12281](https://redirect.github.com/astral-sh/uv/pull/12281))

</details>

---

### Configuration

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Automerge - At any time (no schedule defined).

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are satisfied.

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rebase/retry checkbox.

👻 **Immortal**: This PR will be recreated if closed unmerged. Get
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that's undesired.

---

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charmcraft.yaml

@@ -27,7 +27,7 @@ parts:
       PIP_BREAK_SYSTEM_PACKAGES=true python3 -m pip install --user --upgrade pip==25.0.1  # renovate: charmcraft-pip-latest
 
       # Use uv to install poetry so that a newer version of Python can be installed if needed by poetry
-      curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.7/uv-installer.sh | sh  # renovate: charmcraft-uv-latest
+      curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.9/uv-installer.sh | sh  # renovate: charmcraft-uv-latest
       # poetry 2.0.0 requires Python >=3.9
       if ! "$HOME/.local/bin/uv" python find '>=3.9'
       then
@@ -74,7 +74,7 @@ parts:
       # rpds-py (Python package) >=0.19.0 requires rustc >=1.76, which is not available in the
       # Ubuntu 22.04 archive. Install rustc and cargo using rustup instead of the Ubuntu archive
       rustup set profile minimal
-      rustup default 1.85.0  # renovate: charmcraft-rust-latest
+      rustup default 1.85.1  # renovate: charmcraft-rust-latest
 
       craftctl default
       # Include requirements.txt in *.charm artifact for easier debugging