[bot] [main] Automated version update (#2217)

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

manifests/prometheusOperator-serviceAccount.yaml

@@ -6,6 +6,6 @@ metadata:
     app.kubernetes.io/component: controller
     app.kubernetes.io/name: prometheus-operator
     app.kubernetes.io/part-of: kube-prometheus
-    app.kubernetes.io/version: 0.67.1
+    app.kubernetes.io/version: 0.68.0
   name: prometheus-operator
   namespace: monitoring