Attempt running GemfileLock updater on all judoscale-*/Gemfile.lock files

This is meant to update the Gemfile.lock files to the new version that's
being created, otherwise they'll become invalid when we merge the
release PR, causing test failures and requiring us to manually run bundle
install, as it happened with v1.11.0.

This is a combination of "I hope it works", based on some searching and
putting pieces together:

googleapis/release-please#1768
googleapis/release-please#1790
googleapis/release-please#1621

Author: carlosantoniodasilva

.github/workflows/release.yml

@@ -20,6 +20,10 @@ jobs:
           package-name: release-please-action
           bump-minor-pre-major: true
           version-file: "judoscale-ruby/lib/judoscale/version.rb"
+          extra-files:
+            - path: "judoscale-*/Gemfile.lock"
+              glob: true
+              type: "GemfileLock"
 
   publish:
     name: Publish to Rubygems