Install clang-tidy on debian only for clang-21 #260

Job	Run time
build (linux/amd64, ubuntu-24.04, noble, clang, 18)	4m 50s
build (linux/amd64, ubuntu-24.04, noble, clang, 17)	4m 23s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 18)	4m 0s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 19)	4m 8s
build (linux/arm64, ubuntu-24.04-arm, jammy, gcc, 12)	4m 9s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 16)	3m 55s
build (linux/amd64, ubuntu-24.04, noble, clang, 20)	4m 31s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 14)	4m 18s
build (linux/amd64, ubuntu-24.04, jammy, gcc, 12)	4m 41s
build (linux/amd64, ubuntu-24.04, noble, gcc, 14)	4m 59s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 13)	4m 4s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 17)	4m 23s
build (linux/amd64, ubuntu-24.04, noble, clang, 19)	5m 11s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 20)	3m 58s
build (linux/amd64, ubuntu-24.04, noble, clang, 16)	4m 47s
build (linux/amd64, ubuntu-24.04, noble, gcc, 13)	3m 53s
merge	0s
	1h 10m 10s

Provide feedback