[feature request] Upgrade platformadmin's yurtappset dependencies to v1beta1

[Lu Chen]

What would you like to be added:
Upgrade IoT component platformadmin's yurtappset dependencies to v1beta1

Why is this needed:
Since yurtappset v1beta1 is released in #1939, the old v1alpha1 version is deprecated.

others
/kind feature

[stale]

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