upgrade argocd to v2.6.3 (kubernetes-sigs#9848)

Signed-off-by: panguicai008 <1121906548@qq.com>

README.md

@@ -178,7 +178,7 @@ Note: Upstart/SysV init based OS types are not supported.
   - [coredns](https://github.com/coredns/coredns) v1.9.3
   - [ingress-nginx](https://github.com/kubernetes/ingress-nginx) v1.6.4
   - [krew](https://github.com/kubernetes-sigs/krew) v0.4.3
-  - [argocd](https://argoproj.github.io/) v2.5.10
+  - [argocd](https://argoproj.github.io/) v2.6.3
   - [helm](https://helm.sh/) v3.10.3
   - [metallb](https://metallb.universe.tf/)  v0.12.1
   - [registry](https://github.com/distribution/distribution) v2.8.1

inventory/sample/group_vars/k8s_cluster/addons.yml

@@ -218,7 +218,7 @@ metallb_speaker_enabled: "{{ metallb_enabled }}"
 #     my_asn: 4200000000
 
 argocd_enabled: false
-# argocd_version: v2.5.10
+# argocd_version: v2.6.3
 # argocd_namespace: argocd
 # Default password:
 #   - https://argo-cd.readthedocs.io/en/stable/getting_started/#4-login-using-the-cli

roles/kubernetes-apps/argocd/defaults/main.yml

@@ -1,5 +1,5 @@
 ---
 argocd_enabled: false
-argocd_version: v2.5.10
+argocd_version: v2.6.3
 argocd_namespace: argocd
 # argocd_admin_password: