fix: enable OIDC authentication for codecov uploads

codecov-action@v5 requires explicit use_oidc: true to use tokenless
OIDC authentication, even when the workflow has id-token: write
permission.

Author: vprusso

.github/workflows/build-test-actions.yml

@@ -63,6 +63,7 @@ jobs:
         if: matrix.python-version == '3.12' && matrix.os == 'ubuntu-latest'
         uses: codecov/codecov-action@v5
         with:
+          use_oidc: true
           fail_ci_if_error: true
           files: ./coverage.xml
           verbose: true