Update to Flink 2.0

[amotl]

About

It looks like Apache Flink is approaching version 2.0. ✨

• https://flink.apache.org/2024/10/23/preview-release-of-apache-flink-2.0/

Backlog

Our code will need some adjustments, as CI is failing on the relevant update staged by @dependabot.

• Build(deps): Bump flinkVersion from 1.19.0 to 2.0-preview1 #55

[matriv]

We cannot make adjustments currently for flink 2.0-preview.
The addSink() methods are deprecated and expect a SinkFunction which is moved to a legacy package, but flink jdbc connector hasn't made that move yet. Additionally the flink jdbc connector hasn't added support to create the new Sink iface which is used to the new toSink() methods.

So this is stalled, until it supports the 2.0-preview, see open PR that is supposed to do this: apache/flink-connector-jdbc#153

[amotl]

Hi. Thank you very much for your evaluations. Let's resume this procedure after upstream has things in order.
I guess we will receive a similar update by Dependabot like #53, when a new release of flink-connector-jdbc is available.