chore(deps): update commitlint monorepo to v21

Author: renovate[bot]

package.json

@@ -59,8 +59,8 @@
 		"tslib": "^2.8.0"
 	},
 	"devDependencies": {
-		"@commitlint/cli": "^19.5.0",
-		"@commitlint/config-conventional": "^19.5.0",
+		"@commitlint/cli": "^21.2.1",
+		"@commitlint/config-conventional": "^21.2.0",
 		"@sapphire/eslint-config": "^5.0.5",
 		"@sapphire/prettier-config": "^2.0.0",
 		"@sapphire/ts-config": "^5.0.1",