chore(deps): update calcom/cal.com docker tag to v5.6.16

Author: renovate[bot]

charts/calcom/values.yaml

@@ -3,7 +3,7 @@ replicaCount: 1
 image:
   repository: calcom/cal.com
   pullPolicy: IfNotPresent
-  tag: v5.0.19
+  tag: v5.6.16
 
 imagePullSecrets: []
 nameOverride: ""