Merge PR #51278 into main

Merge PR #51278 into main

* refs/pull/51278/head:
	mgr/snap_schedule: rephrase log message when pruning
	doc: add note about snap-schedule snapshot retention
	qa: test user defined number of snaps retention spec
	mgr/snap_schedule: adapt test to new argument list
	doc/cephfs: Add note how mds_max_snaps_per_dir affects snapshot retention
	mgr/snap_schedule: Use mds_max_snaps_per_dir as snapshot count limit

Reviewed-by: Dhairya Parmar <dparmar@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>