If it still refuses to get @rubdos’s versions, this should force it through:
devel-su zypper install --oldpackage --force sailfish-components-webview-qt5-1.2.14+jb53103.20210304094636.f48fd13-1 sailfish-components-webview-qt5-pickers-1.2.14+jb53103.20210304094636.f48fd13-1 sailfish-components-webview-qt5-popups-1.2.14+jb53103.20210304094636.f48fd13-1