fix typo in struct tag (#30884)
fix typo in struct tag (#30884)

typo found by [`revive`](https://github.com/mgechev/revive)
hashicorp/terraform,tommynsong/terraform,rnaveiras/terraform,rnaveiras/terraform,hashicorp/terraform,hashicorp/terraform,rnaveiras/terraform,tommynsong/terraform,tommynsong/terraform