Update v0.6.20

[pp-r]

Problem

• v0.6.19 is outdated

Solution

• Update v0.6.20 ... and install flask-limiter but i don't know how to do this https://github.com/janeczku/calibre-web/releases/tag/0.6.20

PR Status

• [ ] Code finished and ready to be reviewed/tested
• [ ] The fix/enhancement were manually tested (if applicable)

Automatic tests

Automatic tests can be triggered on https://ci-apps-dev.yunohost.org/ after creating the PR, by commenting "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!". (N.B. : for this to work you need to be a member of the Yunohost-Apps organization)

[pp-r]

!testme

[yunohost-bot]

:sunflower:

[Krakinou]

Hello, Thanks for the update but I was waiting for the next upgrade to test the auto-updater. This is now working. For the flask-limiter, it's included into the requirement.txt file, so it should be done automatically during the upgrade.