Update all workflows to Node.js version 20 (#3637)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jonrohan <54012+jonrohan@users.noreply.github.com>

Author: Copilot

.github/workflows/codeql-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     - uses: actions/setup-node@v4
       with:
-        node-version: 16
+        node-version: 20
         cache: 'npm'
     - run: |
         npm ci

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
           bundler-cache: true
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
           cache: 'npm'
       - name: Create .gem credentials
         run: |
@@ -28,7 +28,7 @@ jobs:
           RUBYGEMS_TOKEN: ${{ secrets.RUBYGEMS_TOKEN_SHARED }}
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
       - name: Create .npmrc
         run: |
           cat << EOF > "$HOME/.npmrc"

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
           cache: 'npm'
 
       - name: Setup Ruby

.github/workflows/static-files.yml

@@ -20,7 +20,7 @@ jobs:
           bundler-cache: true
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
           cache: 'npm'
       - name: Build
         run: npm ci