Simplify workflow to infer and use NPM

Author: seesharprun

.github/workflows/continuous-deployment.yml

@@ -50,28 +50,11 @@ jobs:
           # Configure DocumentDB version (can be overridden by repository variables)
           echo "DOCUMENTDB_VERSION=${{ vars.DOCUMENTDB_VERSION || 'latest' }}" >> $GITHUB_ENV
           echo "MULTI_VERSION=${{ vars.MULTI_VERSION || 'true' }}" >> $GITHUB_ENV
-      - name: Detect package manager
-        id: detect-package-manager
-        run: |
-          if [ -f "${{ github.workspace }}/yarn.lock" ]; then
-            echo "manager=yarn" >> $GITHUB_OUTPUT
-            echo "command=install" >> $GITHUB_OUTPUT
-            echo "runner=yarn" >> $GITHUB_OUTPUT
-            exit 0
-          elif [ -f "${{ github.workspace }}/package.json" ]; then
-            echo "manager=npm" >> $GITHUB_OUTPUT
-            echo "command=ci" >> $GITHUB_OUTPUT
-            echo "runner=npx --no-install" >> $GITHUB_OUTPUT
-            exit 0
-          else
-            echo "Unable to determine package manager"
-            exit 1
-          fi
       - name: Setup Node.js
         uses: actions/setup-node@v5
         with:
           node-version: 24
-          cache: ${{ steps.detect-package-manager.outputs.manager }}
+          cache: npm
       - name: Restore cache
         uses: actions/cache@v4
         with:
@@ -83,11 +66,11 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-
       - name: Install dependencies
-        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
+        run: npm ci
       - name: Build with Next.js
         env:
           NEXT_BASE_PATH: ${{ github.event.repository.name }}
-        run: ${{ steps.detect-package-manager.outputs.runner }} next build
+        run: npm run build
       - name: Download DocumentDB packages from latest release
         run: .github/scripts/download_packages.sh
       - name: Upload artifact