bump version to 2.6.0a1 for app-inference pre-release

Author: calvinleng-science

setup.py

@@ -6,7 +6,7 @@
 
 setup(
     name="science-synapse",
-    version="2.5.0",
+    version="2.6.0a1",
     description="Client library and CLI for the Synapse API",
     author="Science Team",
     author_email="team@science.xyz",