chore: Update K8s test matrix (#156)

Signed-off-by: Rashed Kamal <[email protected]>

Author: rashedkvm

.github/workflows/ci.yaml

@@ -160,13 +160,11 @@ jobs:
     strategy:
       matrix:
         k8s:
-        - 1.21.14
-        - 1.22.17
-        - 1.23.17
-        - 1.24.12
-        - 1.25.8
-        - 1.26.3
-        - 1.27.2
+        - 1.24.15
+        - 1.25.9
+        - 1.26.6
+        - 1.27.3
+        - 1.28.0
     env:
       REGISTRY_NAME: registry.local
       BUNDLE: registry.local/source/bundle