chore(deps): update dependency node to v22

Author: renovate[bot]

.github/workflows/repomix.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
 
       - name: Install Repomix
         run: npm install -g repomix