ci: Fix typo

Author: gabe565

.github/workflows/docker.yml

@@ -73,7 +73,7 @@ jobs:
 
   readme:
     name: Update DockerHub Description
-    if: ${{ github.short_ref == 'main' }}
+    if: ${{ github.ref_name == 'main' }}
     runs-on: ubuntu-latest
     needs: build
     steps: