Bump numpy from 2.1.1 to 2.1.2 in /.github/dependabot (#344)

Bumps [numpy](https://github.com/numpy/numpy) from 2.1.1 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@v2.1.1...v2.1.2)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/dependabot/constraints.txt

@@ -4,7 +4,7 @@ kafka-python==2.0.2
 matplotlib==3.9.2
 mplcursors==0.5.3
 mpl-pan-zoom==1.0.0
-numpy==2.1.1
+numpy==2.1.2
 openpyxl==3.1.5
 pandas==2.2.3
 pyflakes==3.2.0