Propagate annotations

[SgtCoDFish]

Example of this working from running an e2e test:

apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  annotations:
    custom.cert-manager.io/policy-name: istio-csr
    custom.cert-manager.io/second-annotation: some-value
  creationTimestamp: "2024-09-02T14:55:20Z"
  generation: 1
  name: istiod-dynamic
  namespace: istio-system
  resourceVersion: "779"
  uid: f157f3fd-2e9d-4d8e-900e-651920490cde
spec:
  commonName: istiod.istio-system.svc
  dnsNames:
  - istiod.istio-system.svc
  duration: 1h0m0s
  issuerRef:
    group: cert-manager.io
    kind: Issuer
    name: istio-ca
  privateKey:
    algorithm: RSA
    rotationPolicy: Always
    size: 2048
  renewBefore: 30m0s
  revisionHistoryLimit: 1
  secretName: istiod-tls
  uris:
  - spiffe://foo.bar/ns/istio-system/sa/istiod-service-account
status:
  conditions:
  - lastTransitionTime: "2024-09-02T14:55:20Z"
    message: Certificate is up to date and has not expired
    observedGeneration: 1
    reason: Ready
    status: "True"
    type: Ready
  notAfter: "2024-09-02T15:55:20Z"
  notBefore: "2024-09-02T14:55:20Z"
  renewalTime: "2024-09-02T15:25:20Z"
  revision: 1

[ThatsMrTalbot]

/lgtm

[SgtCoDFish]

/approve

[cert-manager-prow]

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