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/api/grpc/admin/server.go

@@ -6,7 +6,6 @@ import (
 
 	"google.golang.org/grpc"
 
-	"github.com/zitadel/zitadel/internal/admin/repository"
 	"github.com/zitadel/zitadel/internal/admin/repository/eventsourcing"
 	"github.com/zitadel/zitadel/internal/api/assets"
 	"github.com/zitadel/zitadel/internal/api/authz"
@@ -29,7 +28,6 @@ type Server struct {
 	database          string
 	command           *command.Commands
 	query             *query.Queries
-	administrator     repository.AdministratorRepository
 	assetsAPIDomain   func(context.Context) string
 	userCodeAlg       crypto.EncryptionAlgorithm
 	passwordHashAlg   crypto.HashAlgorithm
@@ -45,7 +43,6 @@ func CreateServer(
 	command *command.Commands,
 	query *query.Queries,
 	sd systemdefaults.SystemDefaults,
-	repo repository.Repository,
 	externalSecure bool,
 	userCodeAlg crypto.EncryptionAlgorithm,
 	auditLogRetention time.Duration,
@@ -54,7 +51,6 @@ func CreateServer(
 		database:          database,
 		command:           command,
 		query:             query,
-		administrator:     repo,
 		assetsAPIDomain:   assets.AssetAPI(externalSecure),
 		userCodeAlg:       userCodeAlg,
 		passwordHashAlg:   crypto.NewBCrypt(sd.SecretGenerators.PasswordSaltCost),