chore: Log HTTP request body on signature verification failure #23318

Job	Run time
Bazel Build Fuzzers	3m 46s
Bazel Test All	20m 18s
Bazel Build Fuzzers AFL	4m 28s
Bazel Build All Config Check	0s
Bazel Test macOS Intel	0s
Python CI Tests	1m 44s
Build IC	14m 52s
Cargo Build Release Linux	7m 47s
Cargo Clippy Linux	4m 0s
Build Determinism (//publish/binaries:upload, release, build-ic/release, false)	12s
Build Determinism (//publish/canisters:upload, canisters, build-ic/canisters, false)	14s
Build Determinism (//ic-os/guestos/envs/prod:upload_disk-img, guest-os/update-img, build-ic/icos/...	12s
Build Determinism (//ic-os/hostos/envs/prod:upload_update-img, host-os/update-img, build-ic/icos/...	13s
Build Determinism (//ic-os/setupos/envs/prod:upload_disk-img, setup-os/disk-img, build-ic/icos/se...	22s
	58m 8s

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