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

Author: renovate[bot]

.github/workflows/build-test.yml

@@ -316,7 +316,7 @@ jobs:
           save-if: false
 
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "22"
 

.github/workflows/release.yml

@@ -100,7 +100,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 'lts/*'
 
@@ -341,7 +341,7 @@ jobs:
           sudo apt-get install -y libxslt1.1 libwebkit2gtk-4.1-dev libayatana-appindicator3-dev librsvg2-dev patchelf
         
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "22"
 
@@ -500,7 +500,7 @@ jobs:
           save-if: false
 
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "22"