Update dependency lint-staged to v15

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "import-sort-cli": "6.0.0",
     "import-sort-parser-typescript": "6.0.0",
     "import-sort-style-eslint": "6.0.0",
-    "lint-staged": "10.5.1",
+    "lint-staged": "15.4.2",
     "prettier": "2.1.2",
     "rimraf": "3.0.2",
     "typescript": "3.9.7"