feat(db): wrap BeginTx in spans to get acquire metrics
This changes adds a span around most db.BeginTx calls so we can get tracings about the connection pool acquire process.
This might help us pinpoint why sometimes some query package traces show longer execution times, while this was not reflected on database side execution times.
Co-authored-by: Silvan <silvan.reusser@gmail.com>
* feat: add projections and query side to executions and targets
* feat: add list and get endpoints for targets
* feat: add integration tests for query endpoints target and execution
* fix: linting
* fix: linting
* fix: review changes, renames and corrections
* fix: review changes, renames and corrections
* fix: review changes, renames and corrections
* fix: review changes, renames and corrections
* fix: review changes, renames and corrections
* fix: review changes, renames and corrections
* fix: remove position from list details
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.
