CI: (deps): Bump cartopy from 0.24.0 to 0.25.0 in /ci

Bumps [cartopy](https://github.com/SciTools/cartopy) from 0.24.0 to 0.25.0.
- [Release notes](https://github.com/SciTools/cartopy/releases)
- [Commits](SciTools/cartopy@v0.24.0...v0.25.0)

---
updated-dependencies:
- dependency-name: cartopy
  dependency-version: 0.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

ci/extra_requirements.txt

@@ -1,4 +1,4 @@
-cartopy==0.24.0
+cartopy==0.25.0
 dask==2025.7.0
 netCDF4==1.7.2
 shapely==2.1.1