Update the version number (#497)

Author: allieychen

setup.py

@@ -42,7 +42,7 @@
 
 setuptools.setup(
     name='gcp_variant_transforms',
-    version='0.7.1',
+    version='0.8.0',
     description=('Tool for transforming and processing VCF files in a '
                  'scalable manner based on Apache Beam'),
     author='Google',