Bump k8s.io/client-go from 0.29.3 to 0.32.2 in /internal/signalfx-agent #4256

Job	Run time
agent-bundle-windows (windows-2022)	1m 25s
msi-custom-actions	2m 33s
agent-bundle-windows (windows-2025)	1m 36s
setup-environment	1m 58s
cross-compile (binaries-windows_amd64)	30s
docker-otelcol	0s
msi-build	0s
dotnet-zeroconfig-e2e-test	0s
msi-test	0s
choco-build	0s
windows-install-script-test	0s
choco-test	0s
	8m 2s

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