fix pipeline (#582)

Co-authored-by: Mohamed Koubaa <[email protected]>

Author: koubaa

Diff for: .github/workflows/publish-run-image.yml

@@ -16,6 +16,7 @@ on:
 env:
   REGISTRY: ghcr.io
   REPO_NAME: ${{ github.repository }}
+  IMAGE_TAG: ${{ github.event.inputs.tagVersion || 'latest'}}
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -45,5 +46,5 @@ jobs:
           context: docker/run
           file: docker/run/Dockerfile
           push: true
-          tags: ${{ env.REGISTRY }}/ansys/pydyna-run:${{ github.event.inputs.tagVersion }}
+          tags: ${{ env.REGISTRY }}/ansys/pydyna-run:${{ env.IMAGE_TAG }}
           cache-from: type=registry,ref=${{ env.REGISTRY }}/ansys/pydyna-run:latest