Had the same question and I reached out support, this is the answer I got:
Sentry’s Integration Platform was launched about a year and a half ago and is the recommended way to create an org-wide token for the
sentry-cli and similar tools so they are not user-specific. You can create one in the Developer Settings under
Internal Integrations and select the desired auth levels - for releases that is typically
Org:Read . Anyone can use the tokens as they act as their own entity in Sentry instead of acting on behalf of the user that created them. However, a user can only create a token with scopes available within their membership role.
Hope this is helpful to anyone coming across the same problem