fix(argocd): update repoURL from rock/homelab to riotpiao-poimen/homelab

Repo transferred to riotpiao-poimen org. Old URL returns 301 redirect
which ArgoCD doesn't follow — all 26 apps stopped syncing.

Live cluster already patched via kubectl. This commit persists the fix.

k8s/argocd/apps/30-security.yaml

@@ -17,7 +17,7 @@ spec:
       helm:
         valueFiles:
           - $values/k8s/infra/iam/vault-values.yaml
-    - repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    - repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
       targetRevision: main
       ref: values
   destination:
@@ -46,7 +46,7 @@ spec:
       helm:
         valueFiles:
           - $values/k8s/infra/iam/authentik-values.yaml
-    - repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    - repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
       targetRevision: main
       ref: values
   destination:
@@ -68,7 +68,7 @@ metadata:
 spec:
   project: homelab
   source:
-    repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
     targetRevision: main
     path: k8s/infra/iam
   destination:
@@ -109,7 +109,7 @@ spec:
       helm:
         valueFiles:
           - $values/k8s/bootstrap/phase3-forgejo/forgejo-values.yaml
-    - repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    - repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
       targetRevision: main
       ref: values
   destination:
@@ -162,7 +162,7 @@ metadata:
 spec:
   project: homelab
   source:
-    repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
     targetRevision: main
     path: k8s/infra/forgejo-runner
   destination:
@@ -190,7 +190,7 @@ metadata:
 spec:
   project: homelab
   source:
-    repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
     targetRevision: main
     path: k8s/infra/forgejo-runner
     helm:
@@ -221,7 +221,7 @@ metadata:
 spec:
   project: homelab
   source:
-    repoURL: https://forgejo.riotpiao.com/rock/homelab.git
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
     targetRevision: main
     path: k8s/infra/forgejo-runner
     helm: