build(deps-dev): bump eslint from 7.6.0 to 7.9.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.6.0 to 7.9.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.6.0...v7.9.0)

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

Author: dependabot[bot]

package-lock.json

@@ -72,7 +72,7 @@
     "chokidar": "^3.4.2",
     "chokidar-cli": "^2.1.0",
     "copyfiles": "^2.3.0",
-    "eslint": "^7.6.0",
+    "eslint": "^7.9.0",
     "eslint-plugin-array-func": "^3.1.6",
     "eslint-plugin-eslint-comments": "^3.2.0",
     "eslint-plugin-import": "^2.22.0",