Failure to unmarshal JSON for some dependencies

[phyber]

Hi,

While updating the net-mgmt/prometheus2 port to v2.31.1, I bumped into the following modules2tuple issue:

# Errors found during processing:
#       error unmarshalling: json: cannot unmarshal array into Go value of type apis.GithubRef, resp: [{"ref":"refs/tags/v1.11.0-alpha","node_id":"MDM6UmVmMTQxMjUyNTQ6cmVmcy90YWdzL3YxLjExLjAtYWxwaGE=","url":"https://api.github.com/repos/hashicorp/consul/git/refs/tags/v1.11.0-alpha","object":{"sha":"4d9b02b775338c99dc3fb4dd5fc913a5b4012e2f","type":"tag","url":"https://api.github.com/repos/hashicorp/consul/git/tags/4d9b02b775338c99dc3fb4dd5fc913a5b4012e2f"}},{"ref":"refs/tags/v1.11.0-beta1","node_id":"MDM6UmVmMTQxMjUyNTQ6cmVmcy90YWdzL3YxLjExLjAtYmV0YTE=","url":"https://api.github.com/repos/hashicorp/consul/git/refs/tags/v1.11.0-beta1","object":{"sha":"77cecd76e64ff780ffbf4915f8ecec5d10c924ad","type":"tag","url":"https://api.github.com/repos/hashicorp/consul/git/tags/77cecd76e64ff780ffbf4915f8ecec5d10c924ad"}},{"ref":"refs/tags/v1.11.0-beta2","node_id":"MDM6UmVmMTQxMjUyNTQ6cmVmcy90YWdzL3YxLjExLjAtYmV0YTI=","url":"https://api.github.com/repos/hashicorp/consul/git/refs/tags/v1.11.0-beta2","object":{"sha":"af0de3be0d8cd40d89375e8d2938f417fbd9e07a","type":"tag","url":"https://api.github.com/repos/hashicorp/consul/git/tags/af0de3be0d8cd40d89375e8d2938f417fbd9e07a"}},{"ref":"refs/tags/v1.11.0-beta3","node_id":"MDM6UmVmMTQxMjUyNTQ6cmVmcy90YWdzL3YxLjExLjAtYmV0YTM=","url":"https://api.github.com/repos/hashicorp/consul/git/refs/tags/v1.11.0-beta3","object":{"sha":"1a7b89c6cbb82ab497963846ce7e8fa39ca3b53a","type":"commit","url":"https://api.github.com/repos/hashicorp/consul/git/commits/1a7b89c6cbb82ab497963846ce7e8fa39ca3b53a"}}]

This is the modules.txt producing this error: modules.txt, and my version of modules2tuple is 2.2.2.

I haven't tried to dig into this yet, but will update the issue if I do.