Upgrade to a newer protobuf version

[Jarosław Potiuk]

In Apache Airflow we have mysql-conneector-python integration that currently holds us back from upgrading to protobuf 4.

Having limitation to Requires-Dist: protobuf (<Requires-Dist: protobuf (<=3.20.3,>=3.11.0) prevents us from upgrading most of other providers - see apache/airflow#30067, Until mysql-connector-python fixes the dependency limitation, we will be forced to stop releasing the provider together with the others (it also means it will not be compatible with the other providers and newer versions of airflow when released

Can you please let us know if there are plans to upgrade the mysql-connector-python python sdk to not limit the protobuf? Otherwise we will have to exclude the mysql provider and stop releasing it.

Also see the devlist discussion thread I started about it (based on yandexcloud provider, but it applies to mysql too).

Thanks in advance!