gitops/cilium: fix gateway.yaml indentation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gitops/home-kubernetes/cilium/gateway.yaml

@@ -6,21 +6,21 @@ metadata:
   namespace: kube-system
 spec:
   gatewayClassName: cilium
-    listeners:
-      - name: http
-        port: 80
-        protocol: HTTP
-        allowedRoutes:
-          namespaces:
-            from: All
-      - name: https
-        port: 443
-        protocol: HTTPS
-        allowedRoutes:
-          namespaces:
-            from: All
-        tls:
-          mode: Terminate
-          certificateRefs:
-            - kind: Secret
-              name: gateway-tls
+  listeners:
+    - name: http
+      port: 80
+      protocol: HTTP
+      allowedRoutes:
+        namespaces:
+          from: All
+    - name: https
+      port: 443
+      protocol: HTTPS
+      allowedRoutes:
+        namespaces:
+          from: All
+      tls:
+        mode: Terminate
+        certificateRefs:
+          - kind: Secret
+            name: gateway-tls