Update generate-schemas.yml

Author: anthony-c-martin

.github/workflows/generate-schemas.yml

@@ -37,7 +37,7 @@ jobs:
           then
             npm run generate-all -- --local-path "$GITHUB_WORKSPACE/workflow-temp/azure-rest-api-specs"
           else
-            npm run generate-single -- --base-path '${{ github.event.inputs.single_path }}/resource-manager' --local-path '$GITHUB_WORKSPACE/workflow-temp/azure-rest-api-specs'
+            npm run generate-single -- --base-path '${{ github.event.inputs.single_path }}/resource-manager' --local-path "$GITHUB_WORKSPACE/workflow-temp/azure-rest-api-specs"
           fi
         working-directory: generator