Bump peaceiris/actions-gh-pages from 3.9.3 to 4.0.0#23

tacaswell merged 2 commits intomainmatplotlib/mpl-gui:mainfrom

dependabot/github_actions/peaceiris/actions-gh-pages-4.0.0matplotlib/mpl-gui:dependabot/github_actions/peaceiris/actions-gh-pages-4.0.0Copy head branch name to clipboard