Use 1.2.1-alpha.2 for conan

Author: jdee

conanfile.py

@@ -11,7 +11,7 @@ class BranchioConan(ConanFile):
     # ----- Package metadata -----
     name = "BranchIO"
     # TODO(jdee): Set the version in one place and propagate it
-    version = "1.2.1"
+    version = "1.2.1-alpha.2"
     license = "MIT"
     description = "Branch Metrics deep linking and attribution analytics C++ SDK"
     topics = (