* Upgrading node to node 18
* Ensure we're on latest version of yarn as well
* add comma to make frontend tests run
* Use Node 18 Alpine image in UI build dockerfile
* delete package-lock.json
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Co-authored-by: wenincode <tyler.wendlandt@hashicorp.com>
Co-authored-by: Ella Cai <ella.y.cai@gmail.com>
Co-authored-by: Ella Cai <ella@hashicorp.com>