Spring Upgrade spring-r2dbc's test dependency on the H2 database to 2.0.x

This is a follow up to #27870, since we cannot upgrade spring-r2dbc's test dependency to H2 2.0 until https://github.com/r2dbc/r2dbc-h2/pull/204 is released.

Comment From: DrZ7

r2dbc-h2:0.9.0.RELEASE?

Comment From: sbrannen

r2dbc-h2:0.9.0.RELEASE?

Probably so, but we are likely waiting for the next umbrella GA release for R2DBC: https://github.com/r2dbc/r2dbc-bom/milestone/17

Comment From: sbrannen

Update:

As far as I understand, r2dbc-h2 0.8 will continue to only support H2 1.4.x; whereas, r2dbc-h2 0.9 will support H2 2.0.x.

Release Notes have been updated:

• 0.8.5
• 0.9.0

Comment From: sbrannen

Superseded by #27976 and actually already addressed in main in e5af4aa608746faf55ddb96c352f6c95065a9d93.

Thanks, @jhoeller