Feature: add createCustomField resolver (#1698)

* Feature: add createCustomField resolver

* update mocks

* fix import

* invalidate workspace datasource cache after migration

* fix typo

server/src/tenant/metadata/tenant-migration/tenant-migration.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+
+import { DataSourceModule } from 'src/tenant/metadata/data-source/data-source.module';
+
+import { TenantMigrationService } from './tenant-migration.service';
+
+@Module({
+  imports: [DataSourceModule],
+  exports: [TenantMigrationService],
+  providers: [TenantMigrationService],
+})
+export class TenantMigrationModule {}