feat(eventstore): increase parallel write capabilities (#5940)

This implementation increases parallel write capabilities of the eventstore.
Please have a look at the technical advisories: [05](https://zitadel.com/docs/support/advisory/a10005) and  [06](https://zitadel.com/docs/support/advisory/a10006).
The implementation of eventstore.push is rewritten and stored events are migrated to a new table `eventstore.events2`.
If you are using cockroach: make sure that the database user of ZITADEL has `VIEWACTIVITY` grant. This is used to query events.

.gitignore

@@ -16,7 +16,7 @@ profile.cov
 *.out
 
 #Debug
-__debug_bin
+__debug_bin*
 debug
 sandbox.go
 /cmd/dev/
@@ -48,6 +48,7 @@ cmd/zitadel/zitadel
 tmp/
 console/src/app/proto/generated/
 **.pb.go
+!pkg/grpc/protoc/v2/options.pb.go
 **.proto.mock.go
 **.pb.*.go
 **.gen.go