fix(deps): update dependency swagger-client to v3.18.4

Author: renovate-bot

package-lock.json

@@ -56,7 +56,7 @@
     "openapi-types": "7.2.3",
     "qs": "6.10.3",
     "request-promise-native": "1.0.9",
-    "swagger-client": "3.12.0",
+    "swagger-client": "3.18.4",
     "swagger-parser": "9.0.1",
     "valid-url": "^1.0.9",
     "wait-on": "5.2.0"