Maintainer task: mirrors aws/aws-sdk-go-v2:aws/protocol/eventstream/testdata
into test/fixtures/aws_sdk_go_v2/ and pins the upstream commit in
manifest.json.
Exit codes: 0 = fixtures already up to date; 2 = fixtures were updated
(CI drift signal); 1 = task failure. Requires OTP 25+ (verified TLS via
:public_key.cacerts_get/0). Set GITHUB_TOKEN for API rate-limit headroom.
Not shipped in the hex package.