Merge pull request #125 from puppetlabs/update-runner-image

(maint) Update module_release_prep.yml to run on latest

Author: gavindidrichsen

.github/workflows/module_release_prep.yml

@@ -16,7 +16,7 @@ on:
 jobs:
   release_prep:
     name: "Release prep"
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-latest"
 
     env:
       BUNDLE_WITHOUT: development:system_tests