Update grade version and relevant dependencies

[ngaruko]

Update grade version and relevant dependencies

[mrsarm]

Migration should be similar to the one done for the cht-android app, checkout medic/cht-android@ce90c39 and medic/cht-android@d99f4d3 .

[mrsarm]

Assigning it to @m5r , he will continue working on #183 with the changes.

Normally build changes, CI changes or test changes don't require to move the ticket to AT, but in this case we made a major upgrade of dependencies and how the app is built, with small refactor in some of the source files to compliant also with Android 10 rules, so we need to perform a full test of the app as when we release a new version.

The alpha version for AT will be provided by the new shiny CI pipeline added by @m5r 😄 , so a good chance also to test that the pipeline is building the app right, and with the right digital signature (therefore, we should test that if the app was installed from the last stable version available, the alpha version can be used to replace it in the phone without loosing the existing data).

CC @jonathanvq

[m5r]

This is ready for AT on branch 178-upgrade-build
PR link