Add major dependency check test for Redis

Signed-off-by: justusbunsi <sk.bunsenbrenner@gmail.com>

unittests/dependency-major-image-check.yaml

@@ -42,3 +42,16 @@ tests:
           path: spec.template.spec.containers[0].image
           # IN CASE OF AN INTENTIONAL MAJOR BUMP, ADJUST THIS TEST
           pattern: bitnami/redis-cluster:7.+$
+  - it: "[redis] ensures we detect major image version upgrades"
+    template: charts/redis/templates/master/application.yaml
+    set:
+      redis-cluster:
+        enabled: false
+      redis:
+        enabled: true
+    asserts:
+      - documentIndex: 0
+        matchRegex:
+          path: spec.template.spec.containers[0].image
+          # IN CASE OF AN INTENTIONAL MAJOR BUMP, ADJUST THIS TEST
+          pattern: bitnami/redis:7.+$