Update org.junit.jupiter to v5.12.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.junit.jupiter:junit-jupiter-engine (source)	5.11.4 -> 5.12.2
org.junit.jupiter:junit-jupiter-api (source)	5.11.4 -> 5.12.2

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[devin-ai-integration]

I've updated the PR to fix the test failures by:

1. Using the JUnit BOM (org.junit:junit-bom:5.12.2) for version management
2. Adding org.junit.platform:junit-platform-launcher as a testRuntimeOnly dependency

This approach has several advantages:

• Ensures version consistency across all JUnit components
• Simplifies dependency management by centralizing version information
• Eliminates version alignment issues between JUnit Platform and JUnit Jupiter

The error was: "OutputDirectoryProvider not available; probably due to unaligned versions of the junit-platform-engine and junit-platform-launcher jars on the classpath/module path."

All tests now pass successfully in the main project. There is an unrelated duplicate file handling issue in the test projects that would need to be addressed separately.