Improve git tag to version conversion

There is also aarch64 arch.

Author: autozimu

ci/cleanup-binary-tags.py

@@ -7,9 +7,7 @@
 
 
 def tag_to_version(tag):
-    version = re.sub(r'binary-', '', tag)
-    version = re.sub(r'-[x86|i686].*', '', version)
-    return version
+    return tag.split('-')[1].lstrip('v')
 
 
 subprocess.check_call('git pull --tags', shell=True)