Update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Setup Node.js and NPM
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc
           cache: npm
@@ -42,7 +42,7 @@ jobs:
         with:
           token: ${{ secrets.BUILD_USER_TOKEN || github.token }} # allows commit of any fixes to trigger a new workflow run
       - name: Setup Node.js and NPM
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc
           cache: npm
@@ -77,7 +77,7 @@ jobs:
       # Setup
       - uses: actions/checkout@v4
       - name: Setup Node.js and NPM
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc
           cache: npm
@@ -114,7 +114,7 @@ jobs:
       # Setup
       - uses: actions/checkout@v4
       - name: Setup Node.js and NPM
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc
           cache: npm

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Setup Node.js and NPM
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: .nvmrc
           cache: npm