Set version to v0.0.6 (#14)

Author: adrianeboyd

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 description = Improve Thinc's performance on Apple devices with native libraries
-version = 0.0.5
+version = 0.0.6
 url = https://github.com/explosion/thinc-apple-ops
 author = Explosion
 author_email = contact@explosion.ai