Bump eslint from 8.57.1 to 9.20.1

Bumps [eslint](https://github.com/eslint/eslint) from 8.57.1 to 9.20.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v8.57.1...v9.20.1)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

docs/package.json

@@ -39,7 +39,7 @@
     "styled-components": "^6.1.14"
   },
   "devDependencies": {
-    "eslint": "^8.57.1",
+    "eslint": "^9.20.1",
     "eslint-config-prettier": "^9.1.0",
     "eslint-mdx": "^3.1.5",
     "eslint-plugin-mdx": "^3.1.5",

gatsby-theme-doctocat-typescript/package.json

@@ -107,7 +107,7 @@
     "@types/styled-system__should-forward-prop": "^5.1.4",
     "@typescript-eslint/eslint-plugin": "^7.8.0",
     "@typescript-eslint/parser": "^7.8.0",
-    "eslint": "^8.57.1",
+    "eslint": "^9.20.1",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-github": "^5.1.8",
     "eslint-plugin-prettier": "^5.2.3",