chore(deps): update commitlint monorepo to v20

Author: renovate[bot]

package.json

@@ -40,8 +40,8 @@
     "@sapphire/utilities": "^3.18.2"
   },
   "devDependencies": {
-    "@commitlint/cli": "^19.8.1",
-    "@commitlint/config-conventional": "^19.8.1",
+    "@commitlint/cli": "^20.4.2",
+    "@commitlint/config-conventional": "^20.4.2",
     "@favware/cliff-jumper": "^3.0.3",
     "@favware/npm-deprecate": "^1.0.7",
     "@joshdb/eslint-config": "2.0.0-next.b88aca0.0",