Bump spring-io/spring-doc-actions from 0.0.20 to 0.0.21

Bumps [spring-io/spring-doc-actions](https://github.com/spring-io/spring-doc-actions) from 0.0.20 to 0.0.21.
- [Commits](https://github.com/spring-io/spring-doc-actions/compare/v0.0.20...v0.0.21)

---
updated-dependencies:
- dependency-name: spring-io/spring-doc-actions
  dependency-version: 0.0.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/deploy-docs.yml

@@ -37,14 +37,14 @@ jobs:
     - name: Copy the cache to be included in the site
       run: cp -rf build/antora/inject-collector-cache-config-extension/.cache build/site/
     - name: Publish Docs
-      uses: spring-io/spring-doc-actions/rsync-antora-reference@v0.0.20
+      uses: spring-io/spring-doc-actions/rsync-antora-reference@v0.0.21
       with:
         docs-username: ${{ secrets.DOCS_USERNAME }}
         docs-host: ${{ secrets.DOCS_HOST }}
         docs-ssh-key: ${{ secrets.DOCS_SSH_KEY }}
         docs-ssh-host-key: ${{ secrets.DOCS_SSH_HOST_KEY }}
     - name: Bust Clouflare Cache
-      uses: spring-io/spring-doc-actions/bust-cloudflare-antora-cache@v0.0.20
+      uses: spring-io/spring-doc-actions/bust-cloudflare-antora-cache@v0.0.21
       with:
         context-root: spring-authorization-server
         cloudflare-zone-id: ${{ secrets.CLOUDFLARE_ZONE_ID }}