Improve metadata version caching (#11775)

Investigating https://github.com/twentyhq/core-team-issues/issues/756, I
found that the error actually stemmed from "Object metadata collection
not found" error.

While this is planned to be fixed by metadata performance improvements
(as stated in [sentry-boss
doc](https://docs.google.com/document/d/1ytbC5W6ZFUSJ3PoJ4IfKi2IehKZYw65mqCnc24aP4RM/edit?tab=t.0)
in "known issues"), I tried some easy improvements to reduce the number
of errors.

packages/twenty-server/src/engine/api/graphql/graphql-query-runner/errors/graphql-query-runner.exception.ts

@@ -23,4 +23,5 @@ export enum GraphqlQueryRunnerExceptionCode {
   RELATION_SETTINGS_NOT_FOUND = 'RELATION_SETTINGS_NOT_FOUND',
   RELATION_TARGET_OBJECT_METADATA_NOT_FOUND = 'RELATION_TARGET_OBJECT_METADATA_NOT_FOUND',
   NOT_IMPLEMENTED = 'NOT_IMPLEMENTED',
+  OBJECT_METADATA_COLLECTION_NOT_FOUND = 'OBJECT_METADATA_COLLECTION_NOT_FOUND',
 }