chore(deps): update commitlint monorepo to v20

Author: renovate[bot]

bun.lockb

@@ -24,8 +24,8 @@
   },
   "devDependencies": {
     "@astrojs/check": "0.9.4",
-    "@commitlint/cli": "19.8.0",
-    "@commitlint/config-conventional": "19.8.0",
+    "@commitlint/cli": "20.0.0",
+    "@commitlint/config-conventional": "20.0.0",
     "lefthook": "1.11.6",
     "typescript": "5.8.3"
   }