Fix setup.py and stdeb.cfg requirements: python-magic

Change-Id: I3a09df124ba2cb8ab386507b7298730170e6857e
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/stdeb.cfg b/stdeb.cfg
index 7d0b3d7..99da12e 100644
--- a/stdeb.cfg
+++ b/stdeb.cfg
@@ -1,2 +1,2 @@
 [DEFAULT]
-Depends: python-setuptools, python-pycurl, python-click, python-prettytable, python-yaml
+Depends: python-setuptools, python-pycurl, python-click, python-prettytable, python-yaml, python-magic