chore(repo): Update linting & formatting to v20 (major) (#8273)

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

Author: renovate[bot]

.changeset/common-showers-sleep.md

@@ -0,0 +1,2 @@
+---
+---

package.json

@@ -77,8 +77,8 @@
     "@clerk/backend": "workspace:*",
     "@clerk/shared": "workspace:*",
     "@clerk/testing": "workspace:*",
-    "@commitlint/cli": "^19.8.0",
-    "@commitlint/config-conventional": "^19.8.0",
+    "@commitlint/cli": "^20.5.0",
+    "@commitlint/config-conventional": "^20.5.0",
     "@eslint/eslintrc": "^3.3.5",
     "@eslint/js": "9.31.0",
     "@faker-js/faker": "^9.9.0",