Improve extensions build. (#12461)

* enable ee build on pr/master

* step1: of including group sync

* disable commit pinning for now

* fixes broken build

* enable team to ldap group sync

* avoid returning error for missing external handler

* services: allow routes to be added before http server start

* services: allows services to add their own migrations

* moves db migrations to ee code base

* build using master branch in ee

* disable enterprise build in .bra.toml

[skip ci]

* removes team sync extensions

* removes commented line

pkg/services/sqlstore/migrations/team_mig.go

@@ -50,4 +50,5 @@ func addTeamMigrations(mg *Migrator) {
 	mg.AddMigration("Add column email to team table", NewAddColumnMigration(teamV1, &Column{
 		Name: "email", Type: DB_NVarchar, Nullable: true, Length: 190,
 	}))
+
 }