Update publish.yml

Author: opensrc0

.github/workflows/publish.yml

@@ -22,10 +22,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 21.6.1
       uses: actions/setup-node@v4
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 21.6.1
         cache: 'npm'
     - run: npm test
 
@@ -35,10 +35,10 @@ jobs:
     needs: [quality]
     steps:
     - uses: actions/checkout@v4
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 21.6.1
       uses: actions/setup-node@v4
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 21.6.1
 
     - run: npm ci
     - run: npm run build