Chart: Align HPA & KEDA conditions. (#11113)

Co-authored-by: Marco Ebert <marco_ebert@icloud.com>

charts/ingress-nginx/tests/controller-deployment_test.yaml

@@ -21,6 +21,28 @@ tests:
           path: spec.replicas
           value: 3
 
+  - it: should create a Deployment without replicas if `controller.autoscaling.enabled` is true
+    set:
+      controller.autoscaling.enabled: true
+    asserts:
+      - notExists:
+          path: spec.replicas
+
+  - it: should create a Deployment without replicas if `controller.keda.enabled` is true
+    set:
+      controller.keda.enabled: true
+    asserts:
+      - notExists:
+          path: spec.replicas
+
+  - it: should create a Deployment with replicas if `controller.autoscaling.enabled` is true and `controller.keda.enabled` is true
+    set:
+      controller.autoscaling.enabled: true
+      controller.keda.enabled: true
+    asserts:
+      - exists:
+          path: spec.replicas
+
   - it: should create a Deployment with argument `--enable-metrics=false` if `controller.metrics.enabled` is false
     set:
       controller.metrics.enabled: false