(PA-6627) Update the first released version for released platforms in spec

 We add a new platform in 'latest_platform_list' method so that it considers builds from nightlies with the 'latest' tag before they are released (since the versioned release package won't be available for new platforms). The platforms which are no more new and have been released are removed from 'latest_platform_list' here along with their first released versions specified as needed.

 We also test upgrade from the first released puppet7 version to the latest released puppet7 version. The new platforms only have one release, so this test is not applicable for them. Removed platforms which have had multiple puppet7 versions released as of now to make the test applicable for them. This is done by setting the 'multiple_puppet7_versions' parameter to true.

Author: skyamgarp

task_spec/spec/acceptance/init_spec.rb

@@ -42,17 +42,7 @@ def log_output_errors(result)
   # used for target_platform, which will use latest puppet_agent
   # in below mentioned test spec
   def latest_platform_list
-    %r{
-      el-9-aarch64|
-      ubuntu-22\.04-aarch64|
-      ubuntu-24|
-      amazon-2023|
-      amazon-2|
-      osx-14|
-      debian-12|
-      debian-11-aarch64|
-      el-9-ppc64le
-    }x
+    %r{ubuntu-24}
   end
 
   it 'works with version and install tasks' do
@@ -73,6 +63,14 @@ def latest_platform_list
                          '7.18.0'
                        when %r{osx-13}
                          '7.26.0'
+                       when %r{el-9-aarch64}, %r{ubuntu-22.04-aarch64}
+                         '7.27.0'
+                       when %r{amazon-2023}, %r{osx-14}, %r{debian-11-aarch64}
+                         '7.28.0'
+                       when %r{debian-12}
+                         '7.29.0'
+                       when %r{el-9-ppc64le}, %r{amazon-2}
+                         '7.31.0'
                        when latest_platform_list
                          'latest'
                        else
@@ -106,7 +104,7 @@ def latest_platform_list
     #                               true
     #                             end
     multiple_puppet7_versions = case target_platform
-                                when %r{osx-13|osx-14|el-9-aarch64|debian-11-aarch64|el-9-ppc64le|amazon-2|ubuntu-24}
+                                when %r{el-9-ppc64le|amazon-2|ubuntu-24}
                                   false
                                 else
                                   true