Another attempt at adding a latest tag only on release builds (#124)

Signed-off-by: Shmuel Kallner <[email protected]>

Author: shmuelk

.github/actions/docker-build-and-push/action.yml

@@ -36,7 +36,7 @@ runs:
 
     - name: Build image
       run: |
-        if [[ ${{ inputs.prerelease }} ]]; then
+        if [[ ${{ inputs.prerelease }} == "true" ]]; then
           LATEST_TAG=""
         else
           LATEST_TAG="-t ${{ inputs.registry }}/${{ inputs.image-name }}:latest"