auto dependabot: bump @types/chai from 4.3.6 to 4.3.9

Bumps [@types/chai](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chai) from 4.3.6 to 4.3.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chai)

---
updated-dependencies:
- dependency-name: "@types/chai"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -1204,9 +1204,9 @@
   integrity sha512-2sRGxJYrluhvIz8ae98i5k5woe9Fics4dMFHTcNfY2xAkj5QGZor+sfZzlgM58Fpw7Kklau9Gn6OhgJP25dKug==
 
 "@types/chai@^4.3.0":
-  version "4.3.6"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.6.tgz#7b489e8baf393d5dd1266fb203ddd4ea941259e6"
-  integrity sha512-VOVRLM1mBxIRxydiViqPcKn6MIxZytrbMpd6RJLIWKxUNr3zux8no0Oc7kJx0WAPIitgZ0gkrDS+btlqQpubpw==
+  version "4.3.9"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.9.tgz#144d762491967db8c6dea38e03d2206c2623feec"
+  integrity sha512-69TtiDzu0bcmKQv3yg1Zx409/Kd7r0b5F1PfpYJfSHzLGtB53547V4u+9iqKYsTu/O2ai6KTb0TInNpvuQ3qmg==
 
 "@types/cookie@^0.4.1":
   version "0.4.1"