[PSM Interop] Bump pip kubernetes to 27.2 (#34017)

I was hoping this would solve the issue with `DeprecationWarning:
HTTPResponse.getheaders() is deprecated`, but it didn't.
Anyway, we should be updating this from time to time.

Changelog:
https://github.com/kubernetes-client/python/blob/release-27.0/CHANGELOG.md

The client library changes from `25.3.0` to `27.2.0` are minimal. 
The majority of the changelog is API updates pulled from k8s upstream.

tools/run_tests/xds_k8s_test_driver/requirements.lock

@@ -7,7 +7,7 @@ grpcio==1.51.1
 grpcio-health-checking==1.48.2
 grpcio-tools==1.48.2
 grpcio-channelz==1.48.2
-kubernetes==25.3.0
+kubernetes==27.2.0
 six==1.16.0
 tenacity==6.3.1
 packaging==21.3

tools/run_tests/xds_k8s_test_driver/requirements.txt

@@ -7,7 +7,7 @@ grpcio~=1.34
 grpcio-health-checking~=1.34
 grpcio-tools~=1.34
 grpcio-channelz~=1.34
-kubernetes~=25.0
+kubernetes~=27.2
 six~=1.13
 tenacity~=6.2
 packaging~=21.3