Fix branch references

.gitea/workflows/pe-docker.yml

@@ -10,14 +10,12 @@ env:
   DHUB_PWORD: ${{ secrets.DHUB_PWORD }}
 
 jobs:
-
   build:
-
     runs-on: self-hosted
-
     steps:
     - name: Pull latest from Git
       run: |
+           echo "Branch: ${{ gitea.head_ref }}"
            pwd
            whoami
            mkdir -p /var/lib/act_runner/
@@ -29,7 +27,7 @@ jobs:
              cd nodbot
              git pull
            fi
-           git checkout ${{ gitea.ref}}
+           git checkout ${{ gitea.head_ref }}
     - name: Build the Docker image
       run: |
            cd /var/lib/act_runner/nodbot