Enable JMX connection

[HoussemNasri]

This enables profiling and monitoring JabRef production builds using tools supporting JMX such as VisualVM and JConsole.

This PR is never meant to be merged, but to provide a JMX-enabled build (we have a pipeline for building and deploying code in PRs labeled with dev: binaries) for users to use for profiling JabRef performance or memory usage.

Steps to test

Mandatory checks

• I own the copyright of the code submitted and I license it under the MIT license
• I manually tested my changes in running JabRef (always required)
• [/] I added JUnit tests for changes (if applicable)
• [/] I added screenshots in the PR description (if change is visible to the user)
• [/] I described the change in CHANGELOG.md in a way that is understandable for the average user (if change is visible to the user)
• I checked the user documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request updating file(s) in https://github.com/JabRef/user-documentation/tree/main/en.

[trag-bot]

@trag-bot didn't find any issues in the code! ✅✨

[github-actions]

The build of this PR is available at https://builds.jabref.org/pull/13896/merge.