gio/tests/meson: Add appinfo-test and apps as appinfo tests dependency

We need to make sure that such binaries are built and available at test time
or we may fail some tests requiring them (directly or through desktop file).

As per this, and because now generated desktop files are available both
at build and install time, don't skip some tests we were used to, but
actually enforce they are running.

gio/tests/meson.build

@@ -256,10 +256,12 @@ if host_machine.system() != 'windows'
     gio_tests += {
       'appinfo' : {
         'install' : false,
+        'extra_programs' : ['appinfo-test'],
       },
       'desktop-app-info' : {
         'install' : false,
         'depends' : gio_launch_desktop,
+        'extra_programs' : ['apps', 'appinfo-test'],
       },
     }
   endif