fix: Raise minimum urllib3 package to 1.26.0

pyproject.toml

@@ -32,7 +32,7 @@ certifi = ">=2018.4.16"
 expiringdict = ">=1.1.4"
 pyRFC3339 = ">=1.0"
 semver = ">=2.10.2"
-urllib3 = ">=1.22.0,<3"
+urllib3 = ">=1.26.0,<3"
 launchdarkly-eventsource = ">=1.1.0,<2.0.0"
 
 redis = { version = ">=2.10.5", optional = true }
@@ -66,7 +66,7 @@ optional = true
 [tool.poetry.group.contract-tests.dependencies]
 Flask = "<4"
 requests = ">=2.31.0"
-urllib3 = ">=1.22.0,<3"
+urllib3 = ">=1.26.0,<3"
 
 
 [tool.poetry.group.docs]
@@ -80,7 +80,7 @@ expiringdict = ">=1.1.4"
 pyrfc3339 = ">=1.0"
 jsonpickle = ">1.4.1"
 semver = ">=2.7.9"
-urllib3 = ">=1.22.0"
+urllib3 = ">=1.26.0"
 jinja2 = "3.1.3"
 
 [tool.mypy]