fix(deps): update dependency google/cloud-modelarmor to ^0.3.0

Author: renovate-bot

modelarmor/composer.json

@@ -1,6 +1,6 @@
 {
     "require": {
         "google/cloud-dlp": "^2.4",
-        "google/cloud-modelarmor": "^0.1.0"
+        "google/cloud-modelarmor": "^0.3.0"
     }
 }