Bump codecov/codecov-action from 4 to 5 (#318)

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

Author: dependabot[bot]

.github/workflows/tests.yaml

@@ -66,4 +66,4 @@ jobs:
         run: |
           pytest -v -r a --color=yes --cov=dask_geopandas --cov-append --cov-report term-missing --cov-report xml .
 
-      - uses: codecov/codecov-action@v4
+      - uses: codecov/codecov-action@v5