Bump actions/upload-artifact from 6 to 7 (#3507)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  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/reusable-build-docs.yaml

@@ -89,7 +89,7 @@ jobs:
       working-directory: build-directory/docs/docsite
 
     - name: Create a downloadable archive that contains the tarball
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: package-docs-build
         path: build-directory/docs/docsite/ansible-package-docs-html-*.tar.gz