Use generic `libcurl4-dev`

[orhtej2]

Problem

• apt reporting conflicts

Solution

• Use generic libcurl4-dev to let apt decide whether to use gnutls or openssl impl.

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)

[orhtej2]

!bookwormtestme

[yunohost-bot]

:books: :worm:

[orhtej2]

Seems to be working