[GR-60664] Provide latest checkstyle 10.21.0.

PullRequest: mx/1865

Added tag jdk-25+3 for changeset 823789b

Added tag jdk-24+29 for changeset a424108

[GR-60580] Support the Loongarch architecture.

PullRequest: mx/1863

Added tag jdk-25+2 for changeset 823789b

Added tag jdk-24+28 for changeset a424108

[GR-47807] Better STOML parsing and code-owners tests.

PullRequest: mx/1854

[GR-60385] Reliably log build errors.

PullRequest: mx/1860

Added tag jdk-25+1 for changeset a424108

Added tag jdk-24+27 for changeset 823789b