qa: use centos latest for fs:upgrade

Fixes: https://tracker.ceph.com/issues/51250
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit b946d5a6b202f3770b3d4a5d34dd8b31b27d8498)

diff --git a/qa/suites/fs/upgrade/featureful_client/old_client/centos_latest.yaml b/qa/suites/fs/upgrade/featureful_client/old_client/centos_latest.yaml
new file mode 120000 (symlink)
index 0000000..bd9854e
--- /dev/null
+++ b/qa/suites/fs/upgrade/featureful_client/old_client/centos_latest.yaml
@@ -0,0 +1 @@
+.qa/distros/supported/centos_latest.yaml
\ No newline at end of file

diff --git a/qa/suites/fs/upgrade/featureful_client/upgraded_client/centos_latest.yaml b/qa/suites/fs/upgrade/featureful_client/upgraded_client/centos_latest.yaml
new file mode 120000 (symlink)
index 0000000..bd9854e
--- /dev/null
+++ b/qa/suites/fs/upgrade/featureful_client/upgraded_client/centos_latest.yaml
@@ -0,0 +1 @@
+.qa/distros/supported/centos_latest.yaml
\ No newline at end of file