Bump eslint from 7.5.0 to 7.6.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.5.0 to 7.6.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.5.0...v7.6.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -1,7 +1,7 @@
 {
     "author": "Sebastian Blask",
     "devDependencies": {
-        "eslint": "7.5.x",
+        "eslint": "7.6.x",
         "web-ext": "5.0.x"
     },
     "license": "MIT",