Add feature generation integration test for feature conflict between API usages

[kathrynkodama]

Blocked until EE9 features can be generated Cover BINARY_SCANNER_CONFLICT_MESSAGE3 = "A working set of features could not be generated due to conflicts in the application’s API usage: %s. Review and update your application to ensure it is not using conflicting APIs from different levels of MicroProfile, Java EE, or Jakarta EE."; https://github.com/OpenLiberty/ci.maven/blob/ac56863e111d20104c947c95ca07130addef66c2/liberty-maven-plugin/src/it/generate-features-it/src/test/java/net/wasdev/wlp/test/dev/it/GenerateFeaturesTest.java#L210 https://github.com/OpenLiberty/ci.gradle/blob/d34607551b1b0061324b49c0cbe7c1c71c907a54/src/test/groovy/io/openliberty/tools/gradle/GenerateFeaturesTest.groovy#L198

[TrevCraw]

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