add gnupg and gnupg2 as test-dependency

apt can work with both, so it has an or-dependency on them,
but the tests want to play with both of them.

Git-Dch: Ignore

debian/tests/control

@@ -1,3 +1,3 @@
 Tests: run-tests
-Restrictions: allow-stderr 
-Depends: @, @builddeps@, fakeroot, wget, stunnel4, db-util
+Restrictions: allow-stderr
+Depends: @, @builddeps@, fakeroot, wget, stunnel4, db-util, gnupg, gnupg2

test/integration/test-very-tight-loop-configure-with-unpacking-new-packages

@@ -45,6 +45,7 @@ Conf libreoffice-core (4 sid [amd64])
 Conf libreoffice-style-galaxy (4 sid [amd64])
 Conf libreoffice (4 sid [amd64])' 'Reading package lists...
 Building dependency tree...
+Calculating upgrade...
 The following NEW packages will be installed:
   ure
 The following packages will be upgraded: