Add some flake8 info to readme file #3626

Job	Run time
build-ceph	2m 17s
build	9m 35s
build-arm64	58m 45s
discovery (container)	3m 59s
pytest (cli)	3m 20s
discovery (embedded)	3m 45s
atom	45m 39s
atom-nightly	0s
pytest (cli_change_lb)	8m 13s
pytest (cli_change_keys)	2m 58s
demo (unsecured)	4m 30s
pytest (cli_change_ns_visibility)	3m 3s
ha (sanity)	3m 45s
demo (psk)	7m 47s
pytest (cli_trash_rbd)	6m 40s
ha (no_huge)	3m 48s
demo (dhchap)	6m 44s
pytest (state)	2m 36s
ha (ns_lb_change)	3m 59s
pytest (multi_gateway)	2m 50s
ha (no_subsystems)	2m 37s
pytest (server)	3m 18s
ha (auto_load_balance)	20m 37s
pytest (grpc)	3m 9s
pytest (omap_lock)	3m 45s
ha (state_transitions)	2m 44s
pytest (log_files)	3m 45s
ha (state_transitions_both_gws)	47m 12s
ha (state_transitions_loop)	7m 51s
pytest (nsid)	3m 46s
ha (state_transitions_rand_loop)	47m 11s
pytest (psk)	2m 49s
pytest (dhchap)	3m 18s
pytest (subsys_grp_name_append)	2m 26s
ha (late_registration)	3m 38s
ha (late_registration_loop)	6m 15s
ha (4gws)	8m 50s
ha (4gws_loop)	10m 2s
ha (4gws_create_delete)	9m 39s
ha (4gws_create_delete_loop)	13m 48s
ha (namespaces)	14m 52s
ha (namespaces_loop)	28m 9s
ha (mtls)	3m 31s
ha (notify)	1m 58s
ha (ceph_status)	2m 4s
ha (blocklist)	2m 28s
ha (main_exit)	1m 37s
ha (cluster_pool)	4m 9s
ha (flat_bdev_per_cluster)	3m 45s
ha (set_qos)	26m 42s
ha (set_qos_2ms)	26m 35s
push-devel-image-to-ceph-registry	0s
push-images-to-ceph-registry	0s
pull-and-run-images	0s
	8h 26m 43s

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