adding compressing to the images

.forgejo/steps/push/action.yml

@@ -49,5 +49,5 @@ runs:
         for tag in ${{ inputs.tags }}; do
             name="${server}/${{ inputs.path }}:${tag}"
             printf "pushing image to %s" "$name"
-            skopeo copy -q -a --dest-precompute-digests ${{ inputs.image }} "$name"
+            skopeo copy --dest-compress --dest-compress-format zstd --dest-compress-level 15  -q -a --dest-precompute-digests ${{ inputs.image }} "$name"
         done