Bump eslint from 7.15.0 to 7.16.0 (#54)

Bumps [eslint](https://github.com/eslint/eslint) from 7.15.0 to 7.16.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.15.0...v7.16.0)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -5,7 +5,7 @@
     "test": "eslint . && web-ext lint"
   },
   "devDependencies": {
-    "eslint": "^7.15.0",
+    "eslint": "^7.16.0",
     "eslint-config-standard": "^16.0.2",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-jsdoc": "^30.7.8",