bump hayden to admin privs

[bobcallaway]

per discussion in slack, elevating community chair to have admin privileges in org

@trevrosen @priyawadhwa @lukehinds @SantiagoTorres fyi

[github-actions[bot]]

:tropical_drink: preview on sigstore-github-sync/sigstore/github-prod

Pulumi report

``` Previewing update (sigstore/github-prod) View Live: https://app.pulumi.com/sigstore/sigstore-github-sync/github-prod/previews/3c62a515-6914-4768-8dc8-1bdbab8de796 @ 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: (update) 🔒 [id=sigstore:haydentherapper] [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/membership:Membership::haydentherapper] [provider=urn:pulumi:github-prod::sigstore-github-sync::pulumi:providers:github::default_6_2_1::c4864a06-f2c2-4a7a-b9b8-d9a955761310] ~ role: "member" => "admin" @ Previewing update.... Resources: ~ 1 to update 586 unchanged ```