add: sampras343 to sigstore-a2a

[SequeI]

Summary

Adding Sachin as a maintainer. This member has expressed interest in helping out with the project to get PR's moving faster (stalled a bit), and they are also the owners of the model transparency Go library + member of the conformance spec so they do have a large amount of community contributions.

cc @lukehinds @sampras343

[github-actions]

🍹 preview on sigstore-github-sync/sigstore/github-prod

Pulumi report

View in Pulumi Cloud

  Previewing update (github-prod)

View Live: https://app.pulumi.com/sigstore/sigstore-github-sync/github-prod/previews/949fe41d-37e7-4767-a7ee-d12e34929e01

@ Previewing update.....
pulumi:pulumi:Stack: (same)
  [urn=urn:pulumi:github-prod::sigstore-github-sync::pulumi:pulumi:Stack::sigstore-github-sync-github-prod]
  + github:index/membership:Membership: (create) 🔒
      [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/membership:Membership::sampras343]
      [provider=urn:pulumi:github-prod::sigstore-github-sync::pulumi:providers:github::default_6_12_1::931ee8ca-84e9-4841-95d3-e7a92f3f6dc9]
      downgradeOnDestroy: false
      role              : "member"
      username          : "sampras343"
  + github:index/teamMembership:TeamMembership: (create)
      [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/teamMembership:TeamMembership::sampras343-sigstore-a2a-codeowners]
      [provider=urn:pulumi:github-prod::sigstore-github-sync::pulumi:providers:github::default_6_12_1::931ee8ca-84e9-4841-95d3-e7a92f3f6dc9]
      role      : "member"
      teamId    : "15226761"
      username  : "sampras343"
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Resources:
  + 2 to create
  627 unchanged
  

[Hayden-IO]

For the org's membership ladder, we first recommend granting a 'write' role if they haven't made changes in the repo but want to help with reviews. You can see examples of how this is setup with branch protection rules for other repos.