MLE-24505 Configuring custom Test tasks correctly

[rjrudin]

This avoids Gradle warnings and also gets the reverse proxy server tests working properly again.

[Copilot]

Pull Request Overview

Refactors Gradle test task configurations to use tasks.withType(Test).configureEach pattern and properly configures custom Test tasks with required classpath and test directories. This change eliminates Gradle warnings and ensures proper functionality of reverse proxy server tests.

• Replaced individual test task configuration with global tasks.withType(Test).configureEach pattern
• Added missing testClassesDirs and classpath properties to custom Test tasks
• Removed redundant useJUnitPlatform() calls from custom test tasks

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
marklogic-client-api/build.gradle	Refactored test configuration to use global pattern and properly configured custom Test tasks
marklogic-client-api-functionaltests/build.gradle	Moved system properties to global Test configuration and added missing classpath properties to custom tasks

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[github-actions]

Copyright Validation Results
Total: 4 | Passed: 0 | Failed: 0 | Skipped: 4 | at: 2025-10-01 16:29:15 UTC | commit: 0f476c9

⏭️ Skipped (Excluded) Files

• Jenkinsfile
• build.gradle
• marklogic-client-api-functionaltests/build.gradle
• marklogic-client-api/build.gradle

✅ All files have valid copyright headers!