Investigate memory leak (#19213)

In search for cache leak + Remove old instrumentation

packages/twenty-server/src/engine/api/graphql/workspace-schema.factory.ts

@@ -12,6 +12,8 @@ import { workspaceResolverBuilderMethodNames } from 'src/engine/api/graphql/work
 import { WorkspaceResolverFactory } from 'src/engine/api/graphql/workspace-resolver-builder/workspace-resolver.factory';
 import { WorkspaceGraphQLSchemaGenerator } from 'src/engine/api/graphql/workspace-schema-builder/workspace-graphql-schema.factory';
 import { FeatureFlagService } from 'src/engine/core-modules/feature-flag/services/feature-flag.service';
+import { MetricsService } from 'src/engine/core-modules/metrics/metrics.service';
+import { MetricsKeys } from 'src/engine/core-modules/metrics/types/metrics-keys.type';
 import { FlatWorkspace } from 'src/engine/core-modules/workspace/types/flat-workspace.type';
 import { DataSourceService } from 'src/engine/metadata-modules/data-source/data-source.service';
 import {
@@ -38,6 +40,7 @@ export class WorkspaceSchemaFactory {
     private readonly workspaceManyOrAllFlatEntityMapsCacheService: WorkspaceManyOrAllFlatEntityMapsCacheService,
     private readonly featureFlagService: FeatureFlagService,
     private readonly dataSourceService: DataSourceService,
+    private readonly metricsService: MetricsService,
   ) {}
 
   async createGraphQLSchema(
@@ -203,6 +206,11 @@ export class WorkspaceSchemaFactory {
       },
     });
 
+    await this.metricsService.incrementCounter({
+      key: MetricsKeys.GraphqlSchemaBuild,
+      shouldStoreInCache: false,
+    });
+
     return executableSchema;
   }