[Key Vault - Certificates] Execute Samples failing in nightly runs

[v-jiaodi]

Key Vault - Certificates nightly test runs are failing with:

Error message:
A certificate with (name/id) cert1647555157636 was not found in this key vault.

Stack trace:
"details": {
"error": {
"code": "CertificateNotFound",
"message": "A certificate with (name/id) cert1647555157636 was not found in this key vault. If you recently deleted this certificate you may be able to recover it using the correct recovery command. For help resolving this issue, please see https://go.microsoft.com/fwlink/?linkid=2125182"
}
}

For more details check here:

• https://dev.azure.com/azure-sdk/internal/_build/results?buildId=1441388&view=results