Update to Plone 6.1.3

[kaerumy]

https://plone.org/download/releases/6.1.3

Check the release schedule.

Read the upgrade guide, explaining the biggest changes compared to 6.0.

Canonical place for these release notes and the full packages changelog.

If you want to jump straight in, here are some important links:

With Buildout you can use the versions file at https://dist.plone.org/release/6.1.3/versions.cfg, plus optionally versions-extra.cfg and versions-ecosystem.cfg.