Updates identity provider information for a user pool.
cognitoidentityprovider_update_identity_provider(UserPoolId,
  ProviderName, ProviderDetails, AttributeMapping, IdpIdentifiers)[required] The user pool ID.
[required] The identity provider name.
The identity provider details to be updated, such as MetadataURL and
MetadataFile.
The identity provider attribute mapping to be changed.
A list of identity provider identifiers.
svc$update_identity_provider(
  UserPoolId = "string",
  ProviderName = "string",
  ProviderDetails = list(
    "string"
  ),
  AttributeMapping = list(
    "string"
  ),
  IdpIdentifiers = list(
    "string"
  )
)