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-front/src/modules/users/graphql/fragments/userQueryFragment.ts

@@ -29,7 +29,7 @@ export const USER_QUERY_FRAGMENT = gql`
         value
         workspaceId
       }
-      currentCacheVersion
+      metadataVersion
       currentBillingSubscription {
         id
         status