fix(resources): broaden arg normalizer guard to URLSearchParams (not just RequestTarget)

RequestTarget extends URLSearchParams, and raw URLSearchParams are also
supported as query targets (line 579). Using URLSearchParams in the guard
covers both forms and is more robust.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: kriszyp

resources/Resource.ts

@@ -530,7 +530,7 @@ function transactional(
 				if (
 					typeof idOrQuery === 'object' &&
 					idOrQuery &&
-					!(idOrQuery instanceof RequestTarget) &&
+					!(idOrQuery instanceof URLSearchParams) &&
 					(!Array.isArray(idOrQuery) || typeof idOrQuery[0] === 'object')
 				) {
 					// (data, context) form