Bump com.puppycrawl.tools:checkstyle from 12.3.0 to 13.0.0

[Copilot]

Description

Checkstyle 13.0.0 introduced stricter SummaryJavadoc validation requiring class-level JavaDoc summaries to begin with a verb or proper noun. Four Jackson module classes had summaries starting with "xAPI" (lowercase 'x'), triggering violations.

Changes

• Updated checkstyle dependency to 13.0.0
• Revised JavaDoc summaries in Jackson modules to start with "Provides" verb:
  • XapiStrictNullValuesModule
  • XapiStrictTimestampModule
  • XapiStrictObjectTypeModule
  • XapiStrictLocaleModule

Checklist:

• Public methods are documented
• Public methods are tested
• New and existing tests pass when run locally
• There are no new warnings or errors

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[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• checkstyle.org
  • Triggering command: /opt/hostedtoolcache/CodeQL/2.23.8/x64/codeql/tools/linux64/java/bin/java /opt/hostedtoolcache/CodeQL/2.23.8/x64/codeql/tools/linux64/java/bin/java -jar /opt/hostedtoolcache/CodeQL/2.23.8/x64/codeql/xml/tools/xml-extractor.jar --fileList=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/working/files-to-index9654946410624213982.list --sourceArchiveDir=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/src --outputDir=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/trap/java (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)