update version constants for 9.0.1 release and update CHANGELOG

Author: roycaihw

CHANGELOG.md

@@ -1,3 +1,7 @@
+# v9.0.1
+**Security Fix:**
+- Bump urllib3 version to pick up security fix for CVE-2019-11324 [kubernetes-client/python#897](https://github.com/kubernetes-client/python/pull/897)
+
 # v9.0.0
 **Bug Fix:**
 - Add fieldSelector parameter to list/watch methods in custom objects spec [kubernetes-client/gen#106](https://github.com/kubernetes-client/gen/pull/106)

scripts/constants.py

@@ -18,7 +18,7 @@
 KUBERNETES_BRANCH = "release-1.13"
 
 # client version for packaging and releasing.
-CLIENT_VERSION = "9.0.0"
+CLIENT_VERSION = "9.0.1"
 
 # Name of the release package
 PACKAGE_NAME = "kubernetes"