chore(deps): update dependency diff to v5 (#261)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -27,7 +27,7 @@
     "@commitlint/config-conventional": "^12.0.0",
     "ava": "^3.13.0",
     "babel-eslint": "^10.1.0",
-    "diff": "^4.0.2",
+    "diff": "^5.0.0",
     "eslint": "^7.1.0",
     "eslint-config-prettier": "^8.0.0",
     "eslint-plugin-prettier": "^3.1.3",