Change: Use better subcommand for creating a release via pontos

The command should be `pontos-relase create` which is more readable.

release/action.yaml

@@ -178,7 +178,7 @@ runs:
       id: release
       run: |
         source ${{ steps.virtualenv.outputs.activate }}
-        pontos-release release ${{ env.ARGS }} --versioning-scheme ${{ inputs.versioning-scheme }} --git-tag-prefix ${{ inputs.git-tag-prefix }}
+        pontos-release create ${{ env.ARGS }} --versioning-scheme ${{ inputs.versioning-scheme }} --git-tag-prefix ${{ inputs.git-tag-prefix }}
       shell: bash
       env:
         GITHUB_USER: ${{ inputs.github-user }}