fix: Correct version extraction in publish workflows (#29)

fix: correct version extraction in docker workflow

Author: abbesBenayache

.github/workflows/publish-docker.yml

@@ -2,8 +2,6 @@ name: Publish to Docker Hub
 
 on:
   push:
-    branches:
-      - main
     tags:
       - "v*"
   workflow_dispatch:
@@ -12,6 +10,7 @@ on:
         description: "Version (e.g., 1.0.0)"
         required: true
         type: string
+
 env:
   IMAGE_NAME: iexec/mcp-server
 
@@ -27,11 +26,17 @@ jobs:
         run: |
           if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
             VERSION="${{ github.event.inputs.version }}"
+          elif [ "${{ github.ref_type }}" = "tag" ]; then
+            VERSION=${GITHUB_REF_NAME#v}
           else
-            VERSION=${GITHUB_REF#refs/tags/v}
+            echo "Error: This workflow should only run on tags or workflow_dispatch"
+            exit 1
           fi
           echo "version=$VERSION" >> $GITHUB_OUTPUT
-          echo "Building Docker image: $VERSION"
+          echo "Building Docker image for version: $VERSION"
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3
@@ -48,6 +53,8 @@ jobs:
           tags: |
             ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}
             ${{ env.IMAGE_NAME }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
 
       - name: Success notification
         run: |