Remove npm ci call

Author: maximetinu

.github/workflows/main.yml

@@ -12,7 +12,6 @@ jobs:
       - uses: actions/setup-node@v1
         with:
           node-version: 12
-      - run: npm ci
       - name: Publish to Visual Studio Marketplace
         uses: HaaLeo/publish-vscode-extension@v0
         with: