[Build][Bugfix] Fix source code path to avoid reference error (#726)

### What this PR does / why we need it?
Fix source code path to avoid reference error in docker image
fix https://github.com/vllm-project/vllm-ascend/issues/725

Signed-off-by: MengqingCao <cmq0113@163.com>

.github/workflows/image_openeuler.yml

@@ -88,6 +88,8 @@ jobs:
       uses: docker/build-push-action@v6
       with:
         platforms: linux/amd64,linux/arm64
+        # use the current repo path as the build context, ensure .git is contained
+        context: .
         # only trigger when tag, branch/main push
         push: ${{ github.event_name == 'push' && github.repository_owner == 'vllm-project' }}
         labels: ${{ steps.meta.outputs.labels }}

.github/workflows/image_ubuntu.yml

@@ -88,6 +88,8 @@ jobs:
       uses: docker/build-push-action@v6
       with:
         platforms: linux/amd64,linux/arm64
+        # use the current repo path as the build context, ensure .git is contained
+        context: .
         # only trigger when tag, branch/main push
         push: ${{ github.event_name == 'push' && github.repository_owner == 'vllm-project' }}
         labels: ${{ steps.meta.outputs.labels }}