Use npm install in deploy-docs workflow

[minggangw]

The deploy-docs workflow failed when triggered manually because it relied on npm ci, which requires a committed package-lock.json. This repository intentionally gitignores package-lock.json (see .gitignore), so the install step always errored out with EUSAGE.

Replace npm ci --ignore-scripts with npm install --ignore-scripts --no-audit --no-fund to keep the intent (skip native build scripts, avoid noisy output) while working without a lockfile.

Fix: #1489

[Copilot]

Pull request overview

Updates the deploy-docs GitHub Actions workflow to install Node dependencies successfully when the workflow is manually triggered, despite the repo intentionally not committing package-lock.json.

Changes:

• Replace npm ci --ignore-scripts with npm install --ignore-scripts --no-audit --no-fund in the docs deployment workflow.

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[coveralls]

coverage: 85.864%. remained the same — minggangw:fix-1489-1 into RobotWebTools:develop