ci: update Node to 18, force npm 9.9.0 for legacy monorepo compatibility

Author: adamhenson

.github/workflows/publish.yml

@@ -12,10 +12,13 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Setup Node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
-          node-version: '14.x'
+          node-version: '18.x'
+          cache: 'npm'
           scope: '@foo-software'
+      - name: Use stable npm version
+        run: npm install -g npm@9.9.0
       - name: Install
         run: |
           npm ci