(CAT-2125) Add Ubuntu 24.04 support

Author: shubhamshinde360

.fixtures.yml

@@ -7,7 +7,7 @@ fixtures:
     facts: 'https://github.com/puppetlabs/puppetlabs-facts.git'
     puppet_agent:
       repo: 'https://github.com/puppetlabs/puppetlabs-puppet_agent.git'
-      ref: v4.13.0
+      ref: v4.21.0
     provision: 'https://github.com/puppetlabs/provision.git'
 
   symlinks:

metadata.json

@@ -61,7 +61,8 @@
       "operatingsystemrelease": [
         "18.04",
         "20.04",
-        "22.04"
+        "22.04",
+        "24.04"
       ]
     },
     {