v4.9.1

What's Changed

• Bump keitaroinc/ckan from 2.9.5-focal to 2.9.6-focal in /ckan by @dependabot in #1714
• Upgrade drupal dependencies by @Zharktas in #1716
• Upgrade ckan image to 2.9.7 by @beazil in #1721

Full Changelog: v4.9.0...v4.9.1