Prepare Release using 'release-plan'

Author: NullVoxPopuli

release-plan-stderr.txt

@@ -0,0 +1,8 @@
+# Unlabeled Changes
+
+* `ember-functions-as-helper-polyfill`
+  * [#148](https://github.com/ember-polyfills/ember-functions-as-helper-polyfill/pull/148) Switch to pnpm ([@NullVoxPopuli](https://github.com/NullVoxPopuli))
+  * [#147](https://github.com/ember-polyfills/ember-functions-as-helper-polyfill/pull/147) fix: Remove @ember/string dependency ([@MichalBryxi](https://github.com/MichalBryxi))
+
+
+*Cannot plan release until the above changes are labeled*.