Update manifests to v0.28.3

Author: chandankumar4

config/install.yaml

@@ -2871,7 +2871,7 @@ spec:
         - --leader-elect
         command:
         - /manager
-        image: quay.io/numaproj/numaplane-controller:v0.28.2
+        image: quay.io/numaproj/numaplane-controller:v0.28.3
         livenessProbe:
           httpGet:
             path: /healthz

config/manager/kustomization.yaml

@@ -8,4 +8,4 @@ resources:
 
 images:
   - name: quay.io/numaproj/numaplane-controller
-    newTag: v0.28.2
+    newTag: v0.28.3