build(deps): bump codecov/codecov-action from 5 to 6 (#38344)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5 to 6.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v5...v6)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/server-tests.yml

@@ -74,7 +74,7 @@ jobs:
       - name: Download artifacts
         uses: actions/download-artifact@v8.0.1
       - name: Upload coverage data
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           name: Server
           token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/ui-tests.yml

@@ -59,7 +59,7 @@ jobs:
       - name: Download artifacts
         uses: actions/download-artifact@v8.0.1
       - name: Upload python coverage data
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           name: UIBackend
           token: ${{ secrets.CODECOV_TOKEN }}
@@ -68,7 +68,7 @@ jobs:
           exclude: coverage-js*
           flags: server-ui
       - name: Upload JS coverage data
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           name: Cypress
           token: ${{ secrets.CODECOV_TOKEN }}