Improve performance twenty orm (#6691)

## Context

As we grow, the messaging scripts are experiencing performance issues
forcing us to temporarily disable them on the cloud.
While investigating the performance, I have noticed that generating the
entity schema (for twentyORM) in the repository is taking ~500ms locally
on my Mac M2 so likely more on pods. Caching the entitySchema then!

I'm also clarifying naming around schemaVersion and cacheVersions ==>
both are renamed workspaceMetadataVersion and migrated to the workspace
table (the workspaceCacheVersion table is dropped).

packages/twenty-server/src/engine/integrations/cache-storage/types/cache-storage-namespace.enum.ts

@@ -1,5 +1,5 @@
 export enum CacheStorageNamespace {
-  Messaging = 'messaging',
-  Calendar = 'calendar',
-  WorkspaceSchema = 'workspaceSchema',
+  ModuleMessaging = 'module:messaging',
+  ModuleCalendar = 'module:calendar',
+  EngineWorkspace = 'engine:workspace',
 }