Add krew-release-bot to github actions

Author: rothgar

.github/workflows/release.yml

@@ -20,5 +20,5 @@ jobs:
           args: release --rm-dist
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      # - name: Update new version in krew-index
-      #   uses: rajatjindal/krew-release-bot@v0.0.40
+      - name: Update new version in krew-index
+        uses: rajatjindal/krew-release-bot@v0.0.43