Tweak Spock tests

[Goooler]

No description provided.

[Copilot]

Pull Request Overview

This PR refactors Spock test specifications to standardize test execution methods and improve test infrastructure. The changes primarily replace inconsistent test runner method calls with standardized naming and enhance the base test configuration.

• Replaced run() and runWithDebug() calls with standardized runWithSuccess() method calls across all test files
• Removed large, resource-intensive, and ignored test cases to streamline the test suite
• Enhanced the base PluginSpecification class with improved Gradle runner configuration and additional deprecation warning detection

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
PluginSpecification.groovy	Enhanced base test class with standardized runner methods, TestKit configuration, and improved deprecation warning detection
AbstractCachingSpec.groovy	Updated test method calls to use standardized runWithSuccess()
TransformerSpec.groovy	Standardized all test execution calls to use runWithSuccess()
ShadowPluginSpec.groovy	Removed large test cases and standardized test execution methods
RelocationSpec.groovy	Updated test method calls to use standardized runWithSuccess()
PublishingSpec.groovy	Standardized test execution calls to use runWithSuccess()
PropertiesFileTransformerSpec.groovy	Updated test method calls to use standardized runWithSuccess()
FilteringSpec.groovy	Standardized all test execution calls to use runWithSuccess()
ConfigureShadowRelocationSpec.groovy	Updated test method calls to use standardized runWithSuccess()
ConfigurationCacheSpec.groovy	Standardized test execution calls to use runWithSuccess()
ApplicationSpec.groovy	Updated test method calls to use standardized runWithSuccess()

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