Merge pull request #9 from step-security/amanstep-patch-1

feat: updated action.yml with new docker image

Author: amanstep

action.yml

@@ -63,7 +63,7 @@ outputs:
     description: 'Boolean string indicating whether any file has been changed'
 runs:
   using: 'docker'
-  image: Dockerfile
+  image: 'docker://ghcr.io/step-security/repo-sync-pull-request:v2.12.1@sha256:d2871db8601f971f250d0ddb7a4cd64651cfd4e81af9e0c5024bda67f80557ac' # v2.12.1
   env:
     GITHUB_TOKEN: ${{ inputs.github_token }}
     REPO_PRIVATE: ${{ github.event.repository.private }}