fix: Raise minimum eventsource dep to v1.2.4 (#333)

Author: keelerm84

pyproject.toml

@@ -33,7 +33,7 @@ expiringdict = ">=1.1.4"
 pyRFC3339 = ">=1.0"
 semver = ">=2.10.2"
 urllib3 = ">=1.26.0,<3"
-launchdarkly-eventsource = ">=1.1.0,<2.0.0"
+launchdarkly-eventsource = ">=1.2.4,<2.0.0"
 
 redis = { version = ">=2.10.5", optional = true }
 python-consul = { version = ">=1.0.1", optional = true }