Rolling version number 1.66.0 -> 1.67.0

Author: AHL Development

setup.py

@@ -130,7 +130,7 @@ def extensions():
 
 setup(
     name="arctic",
-    version="1.66.0",
+    version="1.67.0",
     author="Man AHL Technology",
     author_email="[email protected]",
     description=("AHL Research Versioned TimeSeries and Tick store"),