chore: Bump actions/upload-artifact from 4 to 5

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -48,7 +48,7 @@ jobs:
           flow-version: 'main'
         id: unit-tests
       - name: Upload unit test coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: unit-coverage
           path: unit-coverage.out
@@ -73,7 +73,7 @@ jobs:
             }
         id: e2e-tests
       - name: Upload E2E test coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: e2e-coverage
           path: e2e-coverage.out