Add basic CI check for ruby packaging code

this validates the Gemfile and Rakefile that will be copied into the build container
they provide tasks that will be used to compile ezbake projects and build packages

Author: bastelfreak

.github/workflows/pr.yml

@@ -38,9 +38,27 @@ jobs:
           lein: latest # Leiningen
       - run: lein test
 
+  # this validates the Gemfile and Rakefile that will be copied into the build container
+  # they provide tasks that will be used to compile ezbake projects and build packages
+  validate-staging-templates:
+    name: Validate Ruby
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.2'
+          bundler-cache: true
+          working-directory: resources/puppetlabs/lein-ezbake/template/global
+      - run: bundle env
+          with:
+            working-directory: resources/puppetlabs/lein-ezbake/template/global
+
   tests:
     needs:
       - test
+      - validate-staging-templates
     runs-on: ubuntu-24.04
     name: Test suite
     steps:

resources/puppetlabs/lein-ezbake/template/global/Gemfile

@@ -1,4 +1,4 @@
-source ENV['GEM_SOURCE'] || 'https://artifactory.delivery.puppetlabs.net/artifactory/api/gems/rubygems/'
+source ENV['GEM_SOURCE'] || 'https://rubygems.org/'
 
 def location_for(place, fake_version = nil)
   if place =~ /^(git[:@][^#]*)#(.*)/