Update pyproject.toml (#1232)

Author: areibman

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "agentops"
-version = "0.4.20"
+version = "0.4.21"
 authors = [
     { name = "Alex Reibman", email = "[email protected]" },
     { name = "Shawn Qiu", email = "[email protected]" },