add changelog entry and update versoin (#87)

Author: EDsCODE

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 2.3.1 - 2023-02-07
+
+1. Log instead of raise error on posthog personal api key errors
+2. Remove upper bound on backoff dependency
+
+
 ## 2.3.0 - 2023-01-31
 
 1. Add support for returning payloads of matched feature flags

posthog/version.py

@@ -1,4 +1,4 @@
-VERSION = "2.3.0"
+VERSION = "2.3.1"
 
 if __name__ == "__main__":
     print(VERSION, end="")