fix(deps): update dependency openapi-types to v12

Author: renovate[bot]

package-lock.json

@@ -58,7 +58,7 @@
     "json-schema-ref-parser": "9.0.9",
     "lodash": "4.17.21",
     "openapi-backend": "3.9.2",
-    "openapi-types": "10.0.0",
+    "openapi-types": "12.0.2",
     "qs": "6.11.0",
     "request-promise-native": "1.0.9",
     "swagger-client": "3.18.5",