chore(deps): update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           version: 9
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           registry-url: https://registry.npmjs.org/

.github/workflows/upgrade-tree-sitter.yml

@@ -15,7 +15,7 @@ jobs:
         with:
           version: 9
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           cache: "pnpm"

.github/workflows/verify.yml

@@ -22,7 +22,7 @@ jobs:
           version: 9
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           cache: "pnpm"
           node-version: ${{ matrix.node-version }}