chore(deps): update ncipollo/release-action action to v1.21.0

Author: renovate[bot]

.github/workflows/auto-release-on-master.yml

@@ -46,7 +46,7 @@ jobs:
       # see https://github.com/ncipollo/release-action
       - name: create github release
         id: create-github-release
-        uses: ncipollo/release-action@b7eabc95ff50cbeeedec83973935c8f306dfcd0b # v1.20.0
+        uses: ncipollo/release-action@339a81892b84b4eeb0f6e744e4574d79d0d9b8dd # v1.21.0
         with:
           tag: ${{ steps.create-bosh-release.outputs.tagged_version }}
           draft: false