Update setup author

Author: janbrasna

setup.py

@@ -25,7 +25,7 @@ def run_tests(self):
     long_description=open('README.md').read().strip(),
     version=__version__,
     author=__author__,
-    author_email='jakub@roztocil.co',
+    author_email='jakub@httpie.io',
     license=__licence__,
     url='https://github.com/httpie/httpcat',
     download_url='https://github.com/httpie/httpcat',