chore(deps): update rust crate regex to v1.12.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
regex	dependencies	minor	1.11.1 -> 1.12.1

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Release Notes

rust-lang/regex (regex)

v1.12.1

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===================
This release makes a bug fix in the new regex::Captures::get_match API
introduced in 1.12.0. There was an oversight with the lifetime parameter
for the Match returned. This is technically a breaking change, but given
that it was caught almost immediately and I've yanked the 1.12.0 release,
I think this is fine.

v1.12.0

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===================
This release contains a smattering of bug fixes, a fix for excessive memory
consumption in some cases and a new regex::Captures::get_match API.

Improvements:

• FEATURE #​1146:
  Add Capture::get_match for returning the overall match without unwrap().

Bug fixes:

• BUG #​1083:
  Fixes a panic in the lazy DFA (can only occur for especially large regexes).
• BUG #​1116:
  Fixes a memory usage regression for large regexes (introduced in regex 1.9).
• BUG #​1195:
  Fix universal start states in sparse DFA.
• BUG #​1295:
  Fixes a panic when deserializing a corrupted dense DFA.
• BUG 8f5d9479:
  Make regex_automata::meta::Regex::find consistently return None when
  WhichCaptures::None is used.

v1.11.3

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===================
This is a small patch release with an improvement in memory usage in some
cases.

Improvements:

• BUG #​1297:
  Improve memory usage by trimming excess memory capacity in some spots.

v1.11.2

Compare Source

===================
This is a new patch release of regex with some minor fixes. A larger number
of typo or lint fix patches were merged. Also, we now finally recommend using
std::sync::LazyLock.

Improvements:

• BUG #​1217:
  Switch recommendation from once_cell to std::sync::LazyLock.
• BUG #​1225:
  Add DFA::set_prefilter to regex-automata.

Bug fixes:

• BUG #​1165:
  Remove std dependency from perf-literal-multisubstring crate feature.
• BUG #​1165:
  Clarify the meaning of (?R)$ in the documentation.
• BUG #​1281:
  Remove fuzz/ and record/ directories from published crate on crates.io.

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