Binder: Use yarn's 'stable' version

ferdnyc · web-flow · commit 63c60ee2cc82 · 2023-07-03T00:29:34.000-04:00
diff --git a/.binder/postBuild b/.binder/postBuild
@@ -3,6 +3,6 @@
 set -e
 
 npm install -g yarn
-yarn set version berry
+yarn set version stable
 
 ./dev-install.sh
