[k8s-label-visualiz] bump client-python pip3 dep

Bump Kubernetes Python Client pip3 dependency
to v29.0.0 Alpha 1 Release
to consume kubernetes-client/python#2131
in order to get a fix for a conflict with recent
urllib3

Signed-off-by: Simone Tiraboschi <stirabos@redhat.com>

tools/k8s-label-visualizer/requirements.txt

@@ -4,7 +4,7 @@ chardet==5.2.0
 google-auth==2.25.1
 graphviz==0.20.1
 idna==3.6
-kubernetes==28.1.0
+kubernetes==29.0.0a1
 marshmallow==3.20.1
 marshmallow-dataclass==8.6.0
 mypy-extensions==1.0.0