Update numpy requirement

Updates the requirements on [numpy](https://github.com/numpy/numpy) to permit the latest version.

Updates `numpy` to 2.1.2
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](numpy/numpy@v0.2.0...v2.1.2)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -14,7 +14,7 @@ description = "A softioc to control a PandABlocks-FPGA."
 dependencies = [
     "fastcs@git+https://github.com/DiamondLightSource/FastCS@panda-conversion-improvements",
     "pandablocks~=0.10.0",
-    "numpy<2",    # until https://github.com/mdavidsaver/p4p/issues/145 is fixed
+    "numpy<3",    # until https://github.com/mdavidsaver/p4p/issues/145 is fixed
     "pydantic>2",
     "h5py",
 ]