checkstyle-10.12.2

Checkstyle 10.12.2 - https://checkstyle.org/releasenotes.html#Release_10.12.2

Bug fixes:

#11338 - FinalClassCheck should report private classes without constructor

Other Changes:

Resolve pitest survivals in modules - 2
Create tests from xdoc examples
Add ``@`since` in javadoc of each property setter
Implement examples macro and xdoc template parser
Update doc of FallThroughCheck to use same java snippet example
update link check to only check internal links in PRs
Run regression testing in CI over openjdk20
Specify violation messages in input files
Restore xdoc-javadoc validation
Extend `getXdocsFilePaths` to gather `.xml.vm` files and get rid of `getAllXdocFilePaths`
Move section comments to include whole examples and shorten xml configs length
Test inputs should be completely standalone.
Targeted Pitest Mutation in July 2023
doc: update VisibilityModifier examples to match tests
Resolve pitest survivals in modules
maven site plugin is failing to execute site goal with compiler plugin 3.11.0
Write a test to ensure checks are present in menu
Resolves Pitest for VariableDeclarationUsageDistanceCheck
Rendering issues with website
BDD configuration comments should be in XML
Update issue template after split of website to use individual page for module