Update feature capability to add recent validation refs

features_capability.json

@@ -30,5 +30,13 @@
   "definitions/certificateAuthority": {
     "stable": {"min": "21.04-ALPHA"},
     "nightlies": {"min": "21.02-MASTER"}
+  },
+  "validations/containerImage": {
+    "stable": {"min": "21.06-BETA"},
+    "nightlies": {"min": "21.04-MASTER"}
+  },
+  "validations/nodePort": {
+    "stable": {"min": "21.04-ALPHA"},
+    "nightlies": {"min": "21.04-MASTER"}
   }
 }