Add @typescript-eslint/class-literal-property-style rule

https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/class-literal-property-style.md

Author: sindresorhus

index.js

@@ -78,10 +78,14 @@ module.exports = {
 					// 	fixWith: 'undefined'
 					// }
 
-					Omit: 'Prefer the `Except` type in the `type-fest` package instead as it\'s stricter.',
+					Omit: 'Prefer the `Except` type in the `type-fest` package instead as it\'s stricter.'
 				}
 			}
 		],
+		'@typescript-eslint/class-literal-property-style': [
+			'error',
+			'getters'
+		],
 		'brace-style': 'off',
 		'@typescript-eslint/brace-style': [
 			'error',

package.json

@@ -44,15 +44,15 @@
 		"simple"
 	],
 	"devDependencies": {
-		"@typescript-eslint/eslint-plugin": "^2.23.0",
-		"@typescript-eslint/parser": "^2.23.0",
+		"@typescript-eslint/eslint-plugin": "^2.25.0",
+		"@typescript-eslint/parser": "^2.25.0",
 		"ava": "^2.4.0",
 		"eslint": "^6.8.0",
 		"temp-write": "^4.0.0",
 		"typescript": "^3.8.3"
 	},
 	"peerDependencies": {
-		"@typescript-eslint/eslint-plugin": ">=2.23.0",
+		"@typescript-eslint/eslint-plugin": ">=2.25.0",
 		"eslint": ">=6.6.0",
 		"typescript": ">=3.5.3"
 	}