chore(deps): bump openapi3-ts from 3.2.0 to 4.3.1

Bumps [openapi3-ts](https://github.com/metadevpro/openapi3-ts) from 3.2.0 to 4.3.1.
- [Release notes](https://github.com/metadevpro/openapi3-ts/releases)
- [Changelog](https://github.com/metadevpro/openapi3-ts/blob/master/Changelog.md)
- [Commits](https://github.com/metadevpro/openapi3-ts/commits)

---
updated-dependencies:
- dependency-name: openapi3-ts
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -84,7 +84,7 @@
         "json-ptr": "^3.0.1",
         "json-schema-traverse": "^1.0.0",
         "lodash": "^4.17.11",
-        "openapi3-ts": "^3.1.1",
+        "openapi3-ts": "^4.3.1",
         "promise-breaker": "^6.0.0",
         "pump": "^3.0.0",
         "qs": "^6.6.0",