fix: add forceNew to google_vertex_ai_featurestore_entitytype_feature value_type field

[modular-magician]

Fixes #13485

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Release Note Template for Downstream PRs (will be copied)

vertexai: fixed updating value_type in google_vertex_ai_featurestore_entitytype_feature

Derived from GoogleCloudPlatform/magic-modules#7124

[github-actions]

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