NIFI-12640 Move servlet-api and jetty-schemas to nifi-jetty-bundle

[exceptionfactory]

Summary

NIFI-12640 Moves the servlet-api and jetty-schemas JAR libraries from the root lib directory to the nifi-jetty-bundle NAR.

NIFI-3694 Moved these libraries to the root lib directory due to Logback ServletContextInitializer issues with Jetty 9.

Jetty 12 has different behavior that avoids startup failures related to ServletContainerInitializer implementations, instead logging an informational message. NiFi already disables the Logback ServletContainerInitializer using an environment variable, so it is not required for any logging operations.

Moving the servlet-api and jetty-schemas JAR libraries to nifi-jetty-bundle maintains their position at the effective root of the NAR Class Loading hierarchy while keeping them packaged in the Jetty NAR.

Tracking

Please complete the following tracking steps prior to pull request creation.

Issue Tracking

• Apache NiFi Jira issue created

Pull Request Tracking

• Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
• Pull Request commit message starts with Apache NiFi Jira issue number, as such NIFI-00000

Pull Request Formatting

• Pull Request based on current revision of the main branch
• Pull Request refers to a feature branch with one commit containing changes

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Build

• Build completed using mvn clean install -P contrib-check
  • JDK 21

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
• New dependencies are documented in applicable LICENSE and NOTICE files

Documentation

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[bbende]

Looks good, will merge, thanks!