Run Airflow 3 from main

run_airflow3.sh

COMMIT_SHA=573cd95 AIRFLOW_HOME=$(pwd) uvx \
  --python 3.11 \
  --from "git+https://github.com/apache/airflow@$COMMIT_SHA" \
  --with "git+https://github.com/apache/airflow@$COMMIT_SHA#egg=apache-airflow-task-sdk&subdirectory=task_sdk" \
  --with "git+https://github.com/apache/airflow@$COMMIT_SHA#egg=local-providers&subdirectory=providers" \
  bash -c "
    cd \$(python -c 'import airflow, os; print(os.path.dirname(airflow.__file__))') && \
    # Build the new UI only if it hasn't been built
    if [ ! -d 'ui/dist' ]; then
      echo 'Building new UI...'
      cd ui && pnpm install && pnpm build && cd ..
    else
      echo 'New UI is already built. Skipping.'
    fi && \
    # Build the legacy UI only if it hasn't been built
    if [ ! -d 'www/static/dist' ]; then
      echo 'Building legacy UI...'
      cd www && yarn install --frozen-lockfile && yarn run build && cd ..
    else
      echo 'Legacy UI is already built. Skipping.'
    fi && \
    # Start Airflow
    airflow standalone
  "