fix(ci): grant ci-deployer Endpoints write (admin role excludes it)

The deploy failed creating the selectorless stalwart-http Service's
Endpoints: since the CVE-2021-25740 hardening the namespaced 'admin' role
no longer grants write on legacy Endpoints. Explicit endpoints +
endpointslices rules on the ci-deployer role (already applied live);
manifest comment touch retriggers the infra apply.

infrastructure/production/fleet/apps/mail-autodiscovery.yaml

@@ -15,6 +15,9 @@
 #
 # Customer domains (autodiscover.<customer>.tld) need per-domain certs and an
 # automated Ingress/Certificate per verified domain — follow-up feature.
+#
+# NB: the ci-deployer Role carries explicit Endpoints write — the namespaced
+# 'admin' role stopped granting it (CVE-2021-25740 hardening).
 apiVersion: v1
 kind: Service
 metadata: