Add @typescript-eslint/no-unsafe-assignment rule

https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-unsafe-assignment.md

Author: sindresorhus

index.js

@@ -333,6 +333,7 @@ module.exports = {
 		'@typescript-eslint/no-unnecessary-qualifier': 'error',
 		'@typescript-eslint/no-unnecessary-type-arguments': 'error',
 		'@typescript-eslint/no-unnecessary-type-assertion': 'error',
+		'@typescript-eslint/no-unsafe-assignment': 'error',
 		'@typescript-eslint/no-unsafe-call': 'error',
 		'@typescript-eslint/no-unsafe-member-access': 'error',
 		'@typescript-eslint/no-unsafe-return': 'error',