Update dependency solhint to v4 (#4708)

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

package.json

@@ -78,7 +78,7 @@
     "prettier-plugin-solidity": "^1.1.0",
     "rimraf": "^5.0.1",
     "semver": "^7.3.5",
-    "solhint": "^3.6.1",
+    "solhint": "^4.0.0",
     "solhint-plugin-openzeppelin": "file:scripts/solhint-custom",
     "solidity-ast": "^0.4.50",
     "solidity-coverage": "^0.8.5",