Bump actions/upload-pages-artifact from 3.0.1 to 4.0.0 in /.github/workflows#1771

Mpdreamz merged 2 commits intomainelastic/docs-builder:mainfrom

dependabot/github_actions/dot-github/workflows/actions/upload-pages-artifact-4.0.0elastic/docs-builder:dependabot/github_actions/dot-github/workflows/actions/upload-pages-artifact-4.0.0Copy head branch name to clipboard