Implement a retry strategy on failure in vault-client

Request method:	POST
Request URI:	https://tdc.ap.cloud.talend.com/api/v1/configurations/persistence/save/datastore
Body:
{
    "configuration": {
        "specifyCredentials": true,
        "accessKey": "TEST_DATA",
        "secretKey": "TEST_DATA"
    },
    "$connectionMetadata": {
        "type": "ZmlsZWlvI0ZpbGVJTyNkYXRhc3RvcmUjUzNEYXRhU3RvcmU",
        "name": "MONITORING_AMAZON_S3_CONNECTION",
        "remoteEngine": "a5b5ee25-8c92-460e-b086-04cd13ee8c90"
    },
    "$remoteEngineId": "a5b5ee25-8c92-460e-b086-04cd13ee8c90",
    "$formId": "ZmlsZWlvI0ZpbGVJTyNkYXRhc3RvcmUjUzNEYXRhU3RvcmU"
}
    When make a Amazon S3 connection named MONITORING_AMAZON_S3_CONNECTION                       # ConnectionStep.makeANamedConnection(String,String)
Request method:	GET
Request URI:	https://tdc.ap.cloud.talend.com/api/v1/datastores/852b643c-b5ec-499f-abbe-f9e3a05b950a
Body:			<none>
    Then check can get created connection                                                        # ConnectionStep.checkCanGetCreatedConnection()
Request method:	POST
Request URI:	https://tdc.ap.cloud.talend.com/api/v1/action/execute/datastore?lang=en&action=S3&family=FileIO&type=healthcheck
Body:
{
    "$connectionMetadata.remoteEngine": "a5b5ee25-8c92-460e-b086-04cd13ee8c90",
    "dataStore.accessKey": "****",
    "dataStore.secretKey": "****",
    "dataStore.specifyCredentials": "true"
}