Add additional test for discriminator type

Author: drwpow

package.json

@@ -57,14 +57,14 @@
   "devDependencies": {
     "@types/degit": "^2.8.3",
     "@types/js-yaml": "^4.0.5",
-    "@types/node": "^18.14.1",
-    "@typescript-eslint/eslint-plugin": "^5.53.0",
-    "@typescript-eslint/parser": "^5.53.0",
+    "@types/node": "^18.15.0",
+    "@typescript-eslint/eslint-plugin": "^5.54.1",
+    "@typescript-eslint/parser": "^5.54.1",
     "@vitest/coverage-c8": "^0.28.5",
     "degit": "^2.8.4",
     "del-cli": "^5.0.0",
-    "eslint": "^8.34.0",
-    "eslint-config-prettier": "^8.6.0",
+    "eslint": "^8.35.0",
+    "eslint-config-prettier": "^8.7.0",
     "eslint-plugin-prettier": "^4.2.1",
     "execa": "^6.1.0",
     "prettier": "^2.8.4",