2026-05-30

adopt b.Loop()

Summary:
Replace `for i := 0; i < b.N; i++` with the Go 1.24 `for b.Loop()` idiom in `dnsdata/data_test.go` and `db/answer_test.go`. Part of T252848475.

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Differential Revision: D106893292

fbshipit-source-id: cf5f2ffe54d02d1637f1f73a8900f89f0deb053f