Bellow are two options that will do the same but use different versions of github actions in checkstyle repository.
Trigger report generation by comment in Pull Request:
Github, generate report for InnerAssignment/Example1
Paste below given to PR description to use such test configs:
Report label: InnerAssignment/Example1
Diff Regression config: https://raw.githubusercontent.com/checkstyle/test-configs/main/InnerAssignment/Example1/config.xml
Diff Regression projects: https://raw.githubusercontent.com/checkstyle/test-configs/main/InnerAssignment/Example1/list-of-projects.properties
Trigger report generation by comment in Pull Request:
Github, generate report
or as alternative by comment
Github, generate report for configs in PR description