Bump flatpak/flatpak-github-actions from 6.5 to 6.6#1649

lenemter merged 1 commit intomasterelementary/code:masterfrom

dependabot/github_actions/flatpak/flatpak-github-actions-6.6elementary/code:dependabot/github_actions/flatpak/flatpak-github-actions-6.6Copy head branch name to clipboard