[ci] mkdir before mv (facebook#32602)

Missed this earlier.

Author: poteto

.github/workflows/runtime_commit_artifacts.yml

@@ -108,6 +108,7 @@ jobs:
           mv build/__test_utils__/ReactAllWarnings.js ./compiled/facebook-www/__test_utils__/ReactAllWarnings.js
 
           # Move eslint-plugin-react-hooks into eslint-plugin-react-hooks
+          mkdir ./compiled/eslint-plugin-react-hooks
           mv build/oss-experimental/eslint-plugin-react-hooks/cjs/eslint-plugin-react-hooks.development.js \
             ./compiled/eslint-plugin-react-hooks/index.js