feat(deps): bump eslint from 6.3.0 to 6.4.0 (#466)

Bumps [eslint](https://github.com/eslint/eslint) from 6.3.0 to 6.4.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.3.0...v6.4.0)

Enable new rules:
- [default-param-last](https://eslint.org/docs/rules/default-param-last)
- [prefer-regex-literals](https://eslint.org/docs/rules/prefer-regex-literals)
- [no-import-assign](https://eslint.org/docs/rules/no-import-assign)

BREAKING CHANGE: requires ESLint minimum version 6.4.0

package.json

@@ -35,7 +35,7 @@
     "eslint-restricted-globals": "^0.2.0"
   },
   "devDependencies": {
-    "eslint": "6.3.0",
+    "eslint": "6.4.0",
     "eslint-find-rules": "3.4.0",
     "execa": "2.0.4",
     "prettier": "1.18.2",
@@ -45,7 +45,7 @@
     "ybiq": "9.1.0"
   },
   "peerDependencies": {
-    "eslint": ">=6.3.0 <7",
+    "eslint": ">=6.4.0 <7",
     "prettier": ">=1.18.2 <2",
     "typescript": ">=3.6.3 <4"
   },

rules/core/best-practices.js

@@ -8,6 +8,7 @@ module.exports = {
     "consistent-return": "error",
     curly: "error",
     "default-case": "error",
+    "default-param-last": "error",
     "dot-location": ["error", "property"],
     "dot-notation": "error",
     eqeqeq: ["error", "always", { null: "ignore" }],
@@ -112,6 +113,7 @@ module.exports = {
     "no-with": "error",
     "prefer-named-capture-group": "error",
     "prefer-promise-reject-errors": "error",
+    "prefer-regex-literals": "error",
     radix: "error",
     "require-await": "error",
     "require-unicode-regexp": "error",

rules/core/possible-errors.js

@@ -20,6 +20,7 @@ module.exports = {
     "no-extra-parens": "error",
     "no-extra-semi": "error",
     "no-func-assign": "error",
+    "no-import-assign": "error",
     "no-inner-declarations": "error",
     "no-invalid-regexp": "error",
     "no-irregular-whitespace": "error",