CI: (deps): Bump pyproj from 3.7.0 to 3.7.1 in /ci

Bumps [pyproj](https://github.com/pyproj4/pyproj) from 3.7.0 to 3.7.1.
- [Release notes](https://github.com/pyproj4/pyproj/releases)
- [Changelog](https://github.com/pyproj4/pyproj/blob/main/docs/history.rst)
- [Commits](pyproj4/pyproj@3.7.0...3.7.1)

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

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

ci/requirements.txt

@@ -3,7 +3,7 @@ numpy==2.2.2
 pandas==2.2.3
 pooch==1.8.2
 pint==0.24.4
-pyproj==3.7.0
+pyproj==3.7.1
 scipy==1.14.1
 traitlets==5.14.3
 xarray==2025.1.2