install biplist and pycountry by default on macOS

* biplist is only used for Apple iOS IPA files.
* pycountry is only used for linting countryCodes in mirror configs.

Both of these are included via the Debian packaging, where those packages
and updates are more vetted.  Homebrew for macOS makes it very difficult to
include optional dependencies, so this includes the optional dependencies
via distutils' method.

.gitlab-ci.yml

@@ -392,9 +392,6 @@ macOS:
     - /bin/bash --version
     - /bin/bash -n gradlew-fdroid tests/run-tests
 
-    # TODO remove the packages below once they are included in the Homebrew package
-    - $(brew --prefix fdroidserver)/libexec/bin/python3 -m pip install biplist oscrypto pycountry
-
     # test fdroidserver from git with current package's dependencies
     - fdroid="$(brew --prefix fdroidserver)/libexec/bin/python3 $PWD/fdroid" ./tests/run-tests
 

setup.py

@@ -93,6 +93,8 @@ setup(
         'platformdirs',
         'androguard >= 3.3.5',
         'asn1crypto',
+        # TODO use biplist on all platforms once IPA support is stable
+        'biplist ; sys_platform=="darwin"',
         'clint',
         'defusedxml',
         'GitPython',
@@ -101,6 +103,7 @@ setup(
         'Pillow',
         'apache-libcloud >= 0.14.1',
         'puremagic',
+        'pycountry ; sys_platform=="darwin"',
         'python-vagrant',
         'PyYAML',
         'qrcode',