cassandra/production: Move load on content replayers

- Decrease the directory replayers because the replay is almost done
- Increase the content replayers to speed up the replay

Related to swh/infra/sysadm-environment#4739

swh/values/cassandra-replay.yaml

@@ -39,7 +39,7 @@ storage_replayer:
       requestedCpu: 425m
       requestedMemory: 200Mi
       autoScaling:
-        maxReplicaCount: 5
+        maxReplicaCount: 32
     directory:
       objects:
         - directory
@@ -47,7 +47,7 @@ storage_replayer:
       requestedCpu: 350m
       requestedMemory: 250Mi
       autoScaling:
-        maxReplicaCount: 64
+        maxReplicaCount: 32
       specific_options:
         directory_entries_insert_algo: batch
     extid: