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.

internal/query/projection/config.go

@@ -7,18 +7,20 @@ import (
 type Config struct {
 	RequeueEvery          time.Duration
 	RetryFailedAfter      time.Duration
-	MaxFailureCount       uint
+	MaxFailureCount       uint8
 	ConcurrentInstances   uint
 	BulkLimit             uint64
 	Customizations        map[string]CustomConfig
 	HandleActiveInstances time.Duration
+	TransactionDuration   time.Duration
 }
 
 type CustomConfig struct {
 	RequeueEvery          *time.Duration
 	RetryFailedAfter      *time.Duration
-	MaxFailureCount       *uint
+	MaxFailureCount       *uint8
 	ConcurrentInstances   *uint
-	BulkLimit             *uint64
+	BulkLimit             *uint16
 	HandleActiveInstances *time.Duration
+	TransactionDuration   *time.Duration
 }