Bump lint-staged from 11.2.6 to 12.1.2 (#135)

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 11.2.6 to 12.1.2.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](lint-staged/lint-staged@v11.2.6...v12.1.2)

---
updated-dependencies:
- dependency-name: lint-staged
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -39,7 +39,7 @@
     "eslint-config-backpacker-react": "^0.8.0",
     "husky": "3.1.0",
     "jest": "^27.0.4",
-    "lint-staged": "^11.0.0",
+    "lint-staged": "^12.1.2",
     "prettier": "^2.0.5",
     "react-test-renderer": "^17.0.1"
   },