Add MigrateToJava25 as a valid migration id

[CodexRaunak]

Add MigrateToJava25 as a valid migration id as we recently added this declarative recipe.
Eg:- Fixes failing validation for this job

Testing done

mvn clean install

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[gounthar]

java.lang.UnsupportedClassVersionError: io/jenkins/tools/pluginmodernizer/cli/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0

[jonesbusy]

java.lang.UnsupportedClassVersionError: io/jenkins/tools/pluginmodernizer/cli/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0

#1187

Because the action download the latest release. This was missing from #1186