fix: Require launchdarkly-server-sdk 9.18.3 or newer

Author: jsonbailey

pyproject.toml

@@ -27,7 +27,7 @@ packages = [
 [tool.poetry.dependencies]
 python = "^3.10"
 openfeature-sdk = ">=0.9.0,<1"
-launchdarkly-server-sdk = ">=9.17.0,<10"
+launchdarkly-server-sdk = ">=9.18.3,<10"
 
 
 [tool.poetry.group.dev.dependencies]