fuzz: increase per-input timeout to 3s for chanmon_consistency

The default 1s timeout is too short for chanmon_consistency_target,
causing inputs to be killed before completion.

AI tools were used in preparing this commit.

Author: joostjager

fuzz/ci-fuzz.sh

@@ -48,7 +48,9 @@ for TARGET in src/bin/*.rs; do
 	ITERATIONS=$((CORPUS_COUNT * 8 + 1000))
 	log_time "Fuzzing $FILE (corpus: $CORPUS_COUNT, iterations: $ITERATIONS)"
 	HFUZZ_RUN_ARGS="--exit_upon_crash -q -n8 -N $ITERATIONS --run_time 600"
-	if [ "$FILE" = "chanmon_consistency_target" -o "$FILE" = "fs_store_target" ]; then
+	if [ "$FILE" = "chanmon_consistency_target" ]; then
+		HFUZZ_RUN_ARGS="$HFUZZ_RUN_ARGS -F 64 -t 3"
+	elif [ "$FILE" = "fs_store_target" ]; then
 		HFUZZ_RUN_ARGS="$HFUZZ_RUN_ARGS -F 64"
 	fi
 	export HFUZZ_RUN_ARGS