CI: (deps): Bump pint from 0.22 to 0.23 in /ci

Bumps [pint](https://github.com/hgrecco/pint) from 0.22 to 0.23.
- [Changelog](https://github.com/hgrecco/pint/blob/master/CHANGES)
- [Commits](hgrecco/pint@0.22...0.23)

---
updated-dependencies:
- dependency-name: pint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

ci/requirements.txt

@@ -2,7 +2,7 @@ matplotlib==3.8.2
 numpy==1.26.2
 pandas==2.1.3
 pooch==1.8.0
-pint==0.22
+pint==0.23
 pyproj==3.6.1
 scipy==1.11.4
 traitlets==5.14.0