Use PAT secret, tag as 5.5 in push.yml

Author: MaxDesiatov

.github/workflows/push.yml

@@ -16,12 +16,12 @@ jobs:
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.PAT }}
       - name: Push Docker image
         uses: docker/build-push-action@v2
         with:
           file: ./Dockerfile
           push: true
           tags: |
-            ghcr.io/swiftwasm/swiftwasm-action:5.4
+            ghcr.io/swiftwasm/swiftwasm-action:5.5
             ghcr.io/swiftwasm/swiftwasm-action:latest