* fix(db): add additional connection pool for projection spooling
* use correct connection pool for projections
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Co-authored-by: Livio Spring <livio.a@gmail.com>
(cherry picked from commit fe1337536f9d7e055e53850b060e9ee806b6c1cb)
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.
