Bump @types/chai from 4.2.17 to 4.2.18 (#121)

Bumps [@types/chai](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chai) from 4.2.17 to 4.2.18.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chai)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
   "devDependencies": {
     "@graphprotocol/graph-cli": "^0.20.0",
     "@graphprotocol/graph-ts": "^0.20.0",
-    "@types/chai": "^4.2.17",
+    "@types/chai": "^4.2.18",
     "@types/chai-spies": "^1.0.3",
     "@types/mocha": "^8.2.2",
     "@typescript-eslint/eslint-plugin": "^4.22.0",