chore:(deps): bump @types/chai from 4.2.17 to 4.2.18 in /explorer (#17118)

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] <support@github.com>

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

explorer/package-lock.json

@@ -3228,9 +3228,9 @@
       }
     },
     "@types/chai": {
-      "version": "4.2.17",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.17.tgz",
-      "integrity": "sha512-LaiwWNnYuL8xJlQcE91QB2JoswWZckq9A4b+nMPq8dt8AP96727Nb3X4e74u+E3tm4NLTILNI9MYFsyVc30wSA=="
+      "version": "4.2.18",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.18.tgz",
+      "integrity": "sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ=="
     },
     "@types/chart.js": {
       "version": "2.9.32",

explorer/package.json

@@ -15,7 +15,7 @@
     "@testing-library/user-event": "^13.1.8",
     "@types/bn.js": "^5.1.0",
     "@types/bs58": "^4.0.1",
-    "@types/chai": "^4.2.17",
+    "@types/chai": "^4.2.18",
     "@types/chart.js": "^2.9.32",
     "@types/classnames": "^2.3.1",
     "@types/jest": "^26.0.23",