Updated to version 3.9.0

[anmol26s]

Problem

• This package is not up to date with upstream https://github.com/YunoHost-Apps/ampache_ynh/issues/39

Solution

• Upgrade to latest stable version

PR Status

• [X] Code finished.
• [ ] Tested with Package_check.
• [ ] Fix or enhancement tested.
• [ ] Upgrade from last version tested.
• [ ] Can be reviewed and tested.

Validation

---

Minor decision

• Upgrade previous version :
• [x] Code review : frju365
• [x] Approval (LGTM) : frju365
• [x] Approval (LGTM) : Maniack C
• CI succeeded :
  When the PR is marked as ready to merge, you have to wait for 3 days before really merging it.

[maniackcrudelis]

@anmol26s, you didn't check the box "Can be reviewed and tested.", did you forget it ? Or is it really not yet done and should not be merged ?

Otherwise, this PR could be merged in 3 days.

[anmol26s]

Sorry for delayed reply. The code was finished was ready for review. I have tested it on Vm. As it is merged will test on production too on testing branch.