fix(deps): update dependency google/cloud-modelarmor to ^0.5.0 (#2159)

Author: renovate-bot

modelarmor/composer.json

@@ -1,6 +1,6 @@
 {
     "require": {
         "google/cloud-dlp": "^2.6",
-        "google/cloud-modelarmor": "^0.4.0"
+        "google/cloud-modelarmor": "^0.5.0"
     }
 }