DCV-3638: Detect TOP and FETCH in has_limit

[jesusmgg]

Summary

• Expand has_limit regex to detect SELECT TOP N and FETCH FIRST/NEXT N ROWS ONLY
  in addition to LIMIT N, avoiding unnecessary query wrapping

Extension-side fix: datacoves/datacoves-power-user#68

Test plan

• LIMIT queries pass through as-is (unchanged behavior)
• TOP queries now pass through instead of being wrapped
• FETCH queries now pass through instead of being wrapped
• No-limit queries still get wrapped with adapter-specific limit

After merge

git tag v1.1.6 && git push origin v1.1.6