Add RangerMauve to js-multiformats repo

[vmx]

As requested at ipld/ipld#224 (comment),
add @RangerMauve as collaborator to js-multiformats.

[github-actions]

Before merge, verify that all the following plans are correct. They will be applied as-is after the merge.

Terraform plans

multiformats

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # github_repository_collaborator.this["js-multiformats → RangerMauve"] will be created
  + resource "github_repository_collaborator" "this" {
      + id                          = (known after apply)
      + invitation_id               = (known after apply)
      + permission                  = "push"
      + permission_diff_suppression = false
      + repository                  = "js-multiformats"
      + username                    = "RangerMauve"
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Changes to Outputs:
  ~ team_membership = [
        # (120 unchanged elements hidden)
        {
            id    = "4657016:Stebalien"
            index = "w3dt-stewards → Stebalien"
        },
      + {
          + id    = "4657016:MarcoPolo"
          + index = "w3dt-stewards → MarcoPolo"
        },
        {
            id    = "4657016:achingbrain"
            index = "w3dt-stewards → achingbrain"
        },
        # (3 unchanged elements hidden)
    ]