Fix number null value forced to 0 (#10202)

This PR fixes https://github.com/twentyhq/twenty/issues/9980

In here we implement a check to pass null through instead of converting
it to 0.

packages/twenty-server/src/engine/api/graphql/workspace-query-runner/factories/query-runner-args.factory.ts

@@ -206,7 +206,7 @@ export class QueryRunnerArgsFactory {
           return [key, newValue];
         }
         case FieldMetadataType.NUMBER:
-          return [key, Number(value)] as const;
+          return [key, value === null ? null : Number(value)];
         case FieldMetadataType.RICH_TEXT_V2: {
           const richTextV2Value = richTextV2ValueSchema.parse(value);