HBASE-30361 Align test tooling and documentation with JUnit 5

[liuxiaocs7]

• see: HBASE-30361
• Co-authored-by: OpenAI Codex (GPT-5.6)

[Copilot]

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Pull request overview

Aligns HBase’s test tooling and documentation with the JUnit 5 migration by removing JUnit 4-specific Surefire wiring and updating contributor docs/scripts to use JUnit 5 tags and extensions.

Changes:

• Remove legacy Surefire JUnit listener/provider configuration tied to JUnit 4.
• Update website docs to describe JUnit 5 (@Tag, Jupiter extension auto-registration) and modern Mockito/JUnit usage.
• Update test tooling script heuristics from JUnit 4 @Category to JUnit 5 @Tag.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pom.xml	Drops JUnit 4-era Surefire listener property, relies on JUnit 5 extension auto-detection.
hbase-website/app/pages/_docs/docs/_mdx/(multi-page)/unit-testing.mdx	Updates examples/links to JUnit 5 + Mockito Jupiter, adds Surefire guidance.
hbase-website/app/pages/_docs/docs/_mdx/(multi-page)/building-and-developing/tests.mdx	Rewrites unit test guidelines around JUnit 5 tags and HBaseJupiterExtension.
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterShutdown.java	Updates comment to reference HBaseJupiterExtension timeout behavior.
hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestsDriver.java	Updates Javadoc to reference JUnit 5 @Tag.
hbase-it/pom.xml	Removes the explicit surefire-junit4 provider dependency.
hbase-common/src/test/java/org/apache/hadoop/hbase/logging/TestLog4jUtils.java	Updates module-dependency rationale in comment.
hbase-common/src/test/java/org/apache/hadoop/hbase/logging/TestJul2Slf4j.java	Updates module-dependency rationale in comment.
hbase-annotations/src/test/java/org/apache/hadoop/hbase/testclassification/IntegrationTests.java	Updates Javadoc to reference JUnit 5 @Tag.
dev-support/hbasetests.sh	Switches categorization detection from @Category to @Tag(...TAG).

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