[bot] [main] Automated version update (#2317)

Co-authored-by: Prometheus Operator Bot <prom-op-bot@users.noreply.github.com>

manifests/setup/0alertmanagerCustomResourceDefinition.yaml

@@ -1053,6 +1053,9 @@ spec:
                 description: Interval between gossip attempts.
                 pattern: ^(0|(([0-9]+)h)?(([0-9]+)m)?(([0-9]+)s)?(([0-9]+)ms)?)$
                 type: string
+              clusterLabel:
+                description: Defines the identifier that uniquely identifies the Alertmanager cluster. You should only set it when the Alertmanager cluster includes Alertmanager instances which are external to this Alertmanager resource. In practice, the addresses of the external instances are provided via the `.spec.additionalPeers` field.
+                type: string
               clusterPeerTimeout:
                 description: Timeout for cluster peering.
                 pattern: ^(0|(([0-9]+)h)?(([0-9]+)m)?(([0-9]+)s)?(([0-9]+)ms)?)$