Use native ESM for dev scripts (#12296)

Co-authored-by: Nicolò Ribaudo <nicolo.ribaudo@gmail.com>

.github/workflows/ci.yml

@@ -65,8 +65,9 @@ jobs:
     name: Build Babel Artifacts
     needs: prepare-yarn-cache
     runs-on: ubuntu-latest
-    env:
-      YARN_NODE_LINKER: pnp # use pnp linker for better linking performance and stricter checks
+    # Yarn PnP does not support native ESM yet (https://github.com/yarnpkg/berry/issues/638)
+    # env:
+    #    YARN_NODE_LINKER: pnp # use pnp linker for better linking performance and stricter checks
     steps:
       - name: Checkout code
         uses: actions/checkout@v2