chore(deps): bump argocd::devops-stack-module-argocd in /examples/eks

Bumps [argocd::devops-stack-module-argocd](https://github.com/camptocamp/devops-stack-module-argocd) from 5.4.0 to 6.0.0.
- [Release notes](https://github.com/camptocamp/devops-stack-module-argocd/releases)
- [Changelog](https://github.com/camptocamp/devops-stack-module-argocd/blob/main/CHANGELOG.md)
- [Commits](camptocamp/devops-stack-module-argocd@v5.4.0...v6.0.0)

---
updated-dependencies:
- dependency-name: argocd::github::camptocamp/devops-stack-module-argocd::v5.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/eks/main.tf

@@ -221,7 +221,7 @@ module "kube-prometheus-stack" {
 }
 
 module "argocd" {
-  source = "git::https://github.com/camptocamp/devops-stack-module-argocd.git?ref=v5.4.0"
+  source = "git::https://github.com/camptocamp/devops-stack-module-argocd.git?ref=v6.0.0"
 
   cluster_name   = module.eks.cluster_name
   base_domain    = module.eks.base_domain