Describe the issue

Ran into this for a few hours tonight where I was naming my role to be assumed GitHubActions and was failing to assume role via OIDC. The action spat out this error. Simply renaming the role to anything else ran successfully.

Could not assume role with OIDC: Not authorized to perform sts:AssumeRoleWithWebIdentity

The pitfall is especially time consuming because web searching the error leads to posts suggesting to fix the conditions in the IAM trust policy which are unrelated.

I suggest either highlighting this restricted role name in the documentation, or fixing the issue preventing use of this role name.