Bump codecov/codecov-action from 4.1.0 to 4.5.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.1.0 to 4.5.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.1.0...v4.5.0)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     - uses: DeterminateSystems/nix-installer-action@main
     - uses: DeterminateSystems/magic-nix-cache-action@main
     - run: nix develop --command bash -c "lint && integration"
-    - uses: codecov/codecov-action@v4.1.0
+    - uses: codecov/codecov-action@v4.5.0
       with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: test/coverage.out