chore(ci): add a version number output from the release-dev task (#5232)

This adds an output from the `release-dev` workflow which will let other
calling workflows get the version which has just been released.

.github/workflows/release-dev.yml

@@ -4,6 +4,11 @@ on:
   workflow_dispatch:
     # Make this a reusable workflow, no value needed
     # https://docs.github.com/en/actions/using-workflows/reusing-workflows
+  workflow_call:
+    outputs:
+      dev-version:
+        description: The version that was just published to npm.
+        value: ${{ jobs.get-dev-version.outputs.dev-version }}
 
 jobs:
   build_core: