[MISC] Fix publishing pipeline (#34)

Author: deusebio

.github/workflows/publish.yaml

@@ -58,9 +58,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Install skopeo
+      - name: Install dependencies
         run: |
-          sudo snap install --devmode --channel edge skopeo
+          sudo snap install rockcraft --classic --edge
 
       - name: Install yq
         run: |
@@ -89,7 +89,7 @@ jobs:
 
           ROCK_FILE=${{ needs.build.outputs.rock }}
 
-          sudo skopeo --insecure-policy copy \
+          sudo rockcraft.skopeo --insecure-policy copy \
             oci-archive:${ROCK_FILE} \
             docker-daemon:${IMAGE_NAME}:${TAG}