- drop python2 handling
- fix version handling and package the private libs again

- Fix confusion in versions

- update to v22.3
UPB (Python/PHP/Ruby C-Extension)
* Remove src prefix from proto import
* Fix .gitmodules to use the correct absl branch
* Remove erroneous dependency on googletest
- update to 22.2:
Java
* Add version to intra proto dependencies and add kotlin stdlib
dependency
* Add $ back for osgi header
* Remove $ in pom files
- update to 22.1:
* Add visibility of plugin.proto to python directory
* Strip "src" from file name of plugin.proto
* Add OSGi headers to pom files.
* Remove errorprone dependency from kotlin protos.
* Version protoc according to the compiler version number.
- update to 22.0:
* This version includes breaking changes to: Cpp.
Please refer to the migration guide for information:
https://protobuf.dev/support/migration/#compiler-22
* [Cpp] Migrate to Abseil's logging library.
* [Cpp] `proto2::Map::value_type` changes to `std::pair`.
* [Cpp] Mark final ZeroCopyInputStream, ZeroCopyOutputStream,
and DefaultFieldComparator classes.