Bump @typescript-eslint/parser from 4.20.0 to 4.21.0 (#19)

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 4.20.0 to 4.21.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/parser/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.21.0/packages/parser)

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

Author: dependabot[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "@octokit/types": "^6.13.0",
     "@types/jest": "^26.0.22",
     "@typescript-eslint/eslint-plugin": "^4.21.0",
-    "@typescript-eslint/parser": "^4.20.0",
+    "@typescript-eslint/parser": "^4.21.0",
     "eslint": "^7.23.0",
     "eslint-config-prettier": "^8.1.0",
     "eslint-plugin-prettier": "^3.3.1",