Prevent seal-status check fails when TLS is expired

If certificate of Vault API is expired, user needs to set
``vault_unseal_verify`` to False to avoid tasks failing.

However, checking seal-status after unsealing still tries
to verify the certificate.

This fixes the issue by setting ``validate_certs`` option
to also follow ``vault_unseal_verify``.

Author: seunghun1ee

roles/vault_unseal/tasks/main.yml

@@ -24,6 +24,7 @@
 - name: Check if vault is sealed
   uri:
     url: "{{ vault_api_addr }}/v1/sys/seal-status"
+    validate_certs: "{{ vault_unseal_verify | default(omit) }}"
   register: vault_seal_status
 
 - name: Fail when vault is still sealed