Add Ruby 4.0 into content resolver.

Keep it in a file separate from regular Ruby, sicne the ruby4.0 is c10s
specific stream that is not present in ELN.

This way we can use jsut the c10s tag for the ruby4.0 stream.

Author: jackorp

configs/rhel-pt-ruby-nodejs--ruby4.0.yaml

@@ -0,0 +1,14 @@
+document: feedback-pipeline-workload
+version: 1
+data:
+  name: Ruby 4.0 runtime
+  description: Ruby 4.0 interpreter and DB connectors
+  maintainer: rhel-pt-ruby-nodejs
+  packages:
+    - ruby4.0
+    - ruby4.0-doc
+    - ruby4.0-devel
+    - ruby4.0-rubygem-mysql2
+    - ruby4.0-rubygem-pg
+  labels:
+    - c10s