#1: try fix source volume in azure ci

.azure/pipelines/build-and-test.yml

@@ -131,7 +131,7 @@ jobs:
             --name test-container \
             --env-file .env \
             -w $WORKSPACE \
-            -v $(Build.SourcesDirectory)/$(Build.Repository.Name):/workspace \
+            -v $(Pipeline.Workspace)/s:/workspace \
             -v $(BUILD_DIR):/opt/foo/build \
             -v $(OUTPUT_DIR):/opt/foo/output \
             -e CI="1" \