Updates netty version to 4.1.115.Final

[Bouncheck]

This rids us of CVE-2024-47535.

[mykaul]

This rids us of CVE-2024-47535.

I did not think it is important, as the above CVE is Windows-specific. But it's good to update anyway.

[Bouncheck]

I agree it's not important, but companies run security scanners and expect (almost) every CVE to be gone. Kafka connectors are affected so we need to update that dependency or we risk not being listed on confluent hub for example.

[mykaul]

I agree it's not important, but companies run security scanners and expect (almost) every CVE to be gone. Kafka connectors are affected so we need to update that dependency or we risk not being listed on confluent hub for example.

Yes, that's why I'm in favor of it, just not high prio ;-)

[dkropachev]

@Bouncheck , do we want to do the same for 3.x ?