CI: upgrade github runner to 22.04. #1103

Job	Run time
chaos-test (minio-io)	24m 25s
chaos-test (minio-memory)	17m 28s
chaos-test (minio-cpu)	24m 45s
chaos-test (minio-bandwidth)	17m 28s
chaos-test (redis-io)	17m 18s
chaos-test (redis-delay)	24m 50s
chaos-test (redis-memory)	16m 0s
chaos-test (redis-cpu)	24m 29s
chaos-test (juicefs-bandwidth)	17m 42s
chaos-test (juicefs-memory)	17m 4s
chaos-test (juicefs-cpu)	17m 1s
chaos-test (juicefs-delay)	24m 29s
success-all-test	8s
	4h 3m 7s

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