Upgrade ESLint to v9 and prettier to v3

- Raises the minimum required Node.js version to `v20`

Additionally, bumps:
- `@babel/core`
- `@babel/eslint-parser`
- `eslint-config-prettier`
- `eslint-plugin-jsdoc`
- `esling-plugin-mocha`
- `eslint-plugin-prettier`
- `eslint-plugin-promise`
- `eslint-plugin-sort-destructure-keys`
- `eslint-plugin-sort-imports-requires`
- `eslint-plugin-sql-template`
- `globals`

.github/workflows/tests.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: ['18', '20']
+        node: ['20', '22']
 
     container:
       image: node:${{ matrix.node }}-alpine

README.md

@@ -7,6 +7,10 @@ extend the [eslint-recommended](https://github.com/eslint/eslint/blob/master/con
 as well as the [overrides](https://github.com/prettier/eslint-config-prettier/blob/master/index.js)
 that allow the [Prettier](https://prettier.io) pretty-printer to reformat the code without conflicts.
 
+## Status
+
+[![npm version][npm-image]][npm-url]
+
 ## Installation
 
 ```sh
@@ -15,6 +19,33 @@ npm install eslint eslint-config-uphold prettier --save-dev
 
 ## Usage
 
+### New (ESLint >= 9)
+
+Create an `eslint.config.js` file with the following content:
+
+```js
+const uphold = require('eslint-config-uphold');
+
+module.exports = uphold;
+```
+
+If you want to extend the config, you can do so like this:
+
+```js
+const uphold = require('eslint-config-uphold');
+const yourPlugin = require('your-eslint-plugin');
+
+module.exports = {
+  ...uphold,
+  plugins: {
+    ...uphold[0].plugins,
+    yourPlugin,
+  }
+};
+```
+
+### Old (ESLint < 9)
+
 Create an `.eslintrc.yml` file with the following content:
 
 ```yaml
@@ -62,3 +93,6 @@ Run it by clicking the "Run workflow" button.
 ## License
 
 MIT
+
+[npm-image]: https://img.shields.io/npm/v/eslint-config-uphold.svg
+[npm-url]: https://www.npmjs.com/package/eslint-config-uphold

eslint.config.js

@@ -0,0 +1,8 @@
+const uphold = require('./src');
+
+module.exports = [
+  ...uphold,
+  {
+    ignores: ['!**/.release-it.js', 'test/fixtures']
+  }
+];

package.json

@@ -31,39 +31,43 @@
     "test": "mocha $npm_package_options_mocha"
   },
   "dependencies": {
-    "@babel/core": "^7.24.5",
-    "@babel/eslint-parser": "^7.24.5",
+    "@babel/core": "^7.25.8",
+    "@babel/eslint-parser": "^7.25.8",
     "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-jsdoc": "^48.2.5",
-    "eslint-plugin-mocha": "^10.4.3",
-    "eslint-plugin-prettier": "^4.2.1",
-    "eslint-plugin-promise": "^6.1.1",
+    "eslint-plugin-jsdoc": "^50.4.1",
+    "eslint-plugin-mocha": "^10.5.0",
+    "eslint-plugin-prettier": "5.1.3",
+    "eslint-plugin-promise": "^7.1.0",
     "eslint-plugin-rulesdir": "^0.2.2",
-    "eslint-plugin-sort-destructure-keys": "^1.6.0",
-    "eslint-plugin-sort-imports-requires": "^1.0.2",
+    "eslint-plugin-sort-destructure-keys": "^2.0.0",
+    "eslint-plugin-sort-imports-requires": "2.0.0",
     "eslint-plugin-sort-keys-fix": "^1.1.2",
-    "eslint-plugin-sql-template": "^2.0.0"
+    "eslint-plugin-sql-template": "3.0.0"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.9.1",
     "@uphold/github-changelog-generator": "^3.4.0",
-    "eslint": "^8.57.0",
+    "eslint": "^9.12.0",
+    "globals": "^15.11.0",
     "mocha": "^10.4.0",
     "pre-commit": "^1.2.2",
-    "prettier": "^2.8.7",
+    "prettier": "^3.3.3",
     "release-it": "^17.2.1",
     "should": "^13.2.3"
   },
   "peerDependencies": {
-    "eslint": "^8.20.0",
-    "prettier": "^2.8.7"
+    "eslint": "^9.0.0",
+    "prettier": "^3.0.0"
   },
   "pre-commit": [
     "lint"
   ],
   "engines": {
-    "node": ">=18"
+    "node": ">=20"
   },
   "options": {
     "mocha": "-t 10000 --require should test"
-  }
+  },
+  "type": "commonjs"
 }