added api_client patch

Author: yliaog

scripts/api_client_patch.diff

@@ -0,0 +1,13 @@
+diff --git a/kubernetes/client/api_client.py b/kubernetes/client/api_client.py
+index 558f0e734..aeace543e 100644
+--- a/kubernetes/client/api_client.py
++++ b/kubernetes/client/api_client.py
+@@ -199,7 +199,7 @@ class ApiClient(object):
+ 
+         response_type = response_types_map.get(response_data.status, None)
+ 
+-        if six.PY3 and response_type not in ["file", "bytes"]:
++        if six.PY3 and response_type not in ["file", "bytes", "str"]:
+             match = None
+             content_type = response_data.getheader('content-type')
+             if content_type is not None:

scripts/update-client.sh

@@ -69,6 +69,7 @@ sed -i'' "s,^DEVELOPMENT_STATUS = .*,DEVELOPMENT_STATUS = \\\"${DEVELOPMENT_STAT
 # second, this should be ported to swagger-codegen
 echo ">>> patching client..."
 git apply "${SCRIPT_ROOT}/rest_client_patch.diff"
+git apply "${SCRIPT_ROOT}/api_client_patch.diff"
 # The following is commented out due to:
 # AttributeError: 'RESTResponse' object has no attribute 'headers'
 # OpenAPI client generator prior to 6.4.0 uses deprecated urllib3 APIs.