Release Arrow 12.0.0 (next release after 11.1.0)

[alamb]

This is a tracking ticket for the next arrow release after https://crates.io/crates/arrow/11.1.0 was released 2022-04-04

The next release from master contains some significant API changes (new prost/tonic, json decoder options, etc)

See full list here:

11.1.0...master

cc @viirya @jhorstmann @tustvold

[alamb]

The PRs are coming fast and furious -- I plan to prepare changelog / release tomorrow (Friday) so if there are any issues that we want to get in (as in not wait another 2 weeks) please highlight them here and get them ready to merge asap

[tustvold]

It would be really cool to get #1560 in, so that I can use it within DataFusion

[alamb]

It would be really cool to get #1560 in, so that I can use it within DataFusion

✔️

[alamb]

Change log / version update is ready: #1569

I'll plan to try and create a release candidate later today to give people a chance to comment

[alamb]

But then we have the three days of voting for them to comment as well, so I don't really plan to leave the changelog up for any extended period of time

[alamb]

https://lists.apache.org/thread/j5d5m33ps56nqt79l7lqs4zmtrmgc9jq -- release approved and released

The release is available here:
https://dist.apache.org/repos/dist/release/arrow/arrow-rs-12.0.0

It has also been uploaded to crates.io:
https://crates.io/crates/arrow/12.0.0
https://crates.io/crates/arrow-flight/12.0.0
https://crates.io/crates/parquet/12.0.0
https://crates.io/crates/parquet-derive/12.0.0