chore: update dependency diff to v8

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "async": "^3.2.6",
     "colors": "^1.4.0",
     "coveralls": "^3.1.1",
-    "diff": "^7.0.0",
+    "diff": "^8.0.1",
     "doctoc": "^2.2.1",
     "duplexer": "^0.1.2",
     "eslint": "^9.26.0",