Reduce GraphQL complexity for non-connection fields

What does this MR do?

Our complexity algorithm increased the complexity for fields based on the possible number of items to be returned. We now only do that for fields that use a connection.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• Separation of EE specific content

Closes #62706 (closed)