Adding automated Docker image creation to ghcr upon release

Author: ChuckMac

.github/workflows/release-docker.yml

@@ -38,6 +38,7 @@ jobs:
       - name: Set version
         id: version
         run: |
+          mkdir -p handlers
           echo ${GITHUB_REF#refs/tags/v} > handlers/VERSION
 
       # Install the cosign tool except on PR