fix(docker): Base image should not refer itself

Default internal action image build workflow assume every image should
rely on base context. This caused base image refers to own base context,
causing it to never be refreshed.
Base image now is build without any context, as it should be.

Signed-off-by: Helio Chissini de Castro <[email protected]>

.github/actions/ortdocker/action.yml

@@ -85,8 +85,26 @@ runs:
           type=raw,value=${{ inputs.version }}
           type=raw,value=${{ steps.check_image.outputs.result }}
 
+    - name: Build base image
+      if: >
+        steps.check_image.outputs.result != 'found' &&
+        inputs.name == 'base'
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        target: ${{ inputs.name }}
+        push: ${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' }}
+        load: false
+        build-args: ${{ inputs.build-args }}
+        tags: |
+          ${{ steps.meta.outputs.tags }}
+          ${{ env.REGISTRY }}/${{ github.repository }}/${{ inputs.name }}:latest
+        labels: ${{ steps.meta.outputs.labels }}
+
     - name: Build image
-      if: steps.check_image.outputs.result != 'found'
+      if: >
+        steps.check_image.outputs.result != 'found' &&
+        inputs.name != 'base'
       uses: docker/build-push-action@v5
       with:
         context: .