build-setup action: run 'npm ci' to avoid duplications in workflows

.github/actions/build-setup/action.yml

@@ -8,3 +8,6 @@ runs:
       with:
         node-version: '16'
         cache: 'npm'
+    - name: Install dependencies
+      shell: bash
+      run: npm ci

.github/workflows/build-artifacts.yml

@@ -26,8 +26,6 @@ jobs:
       - uses: actions/checkout@v2
       - name: Build Setup
         uses: ./.github/actions/build-setup
-      - name: Install dependencies
-        run: npm ci
       - name: Bundle documentation theme
         run: gulp bundle
       - name: Upload UI bundle

.github/workflows/publish-pr-preview.yml

@@ -37,5 +37,4 @@ jobs:
           failOnError: true
           teardown: 'true'
           build: |
-            npm ci
             gulp preview:build