tridentctl erroneously captures kubectl stderr output

[magicite]

Describe the bug
It looks like tridentctl is erroneously intercepting kubectl stderr. Example:

% ./trident-installer-24.02.0/extras/macos/bin/tridentctl -d version
DEBU[2024-03-12T14:10:11-05:00] >>>> command.ExecuteWithoutLog                args="[get serviceaccount default -o=json]" command=kubectl
DEBU[2024-03-12T14:10:12-05:00] <<<< command.ExecuteWithoutLog                command=kubectl error="<nil>"
Error: invalid character 'W' looking for beginning of value

kubectl in my environment (rancher-deployed cluster) is currently emitting a warning:

% kubectl get nodes
Warning: Use tokens from the TokenRequest API or manually created secret-based tokens instead of auto-generated secret-based tokens.
NAME             STATUS   ROLES                       AGE   VERSION
...

Environment

• Rancher-deployed cluster, v1.27.11+rke2r1.
• Trident version: 24.02.0

To Reproduce
Run tridentctl with underlying kubectl configuration using legacy tokens

Expected behavior
tridentctl version output emitted.

Additional context
One way to work around this, which we've done for now, is to disable the LegacyServiceAccountTokenTracking k8s feature gate. That makes the kubectl warning go away, which makes things work.