Sync s3 keys with vercel

I am making use of the great vercel and github integration so that if I create a new feature branch I get a vercel deployment as well as a supabase branch and the env vars for the supabase branch are synced across to vercel so it points to the right supabase branch.

However, it does not sync across any s3 keys. I am using the s3 client for supabase storage. I notice that actually unlike with local dev there are no access keys created automatically on preview deployments.

Is there a way to have this set up so that I don't have to manually create s3 keys for each new feat branch and then also update them in the vercel environment?
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