Update ediscoveryCase
PATCH https://graph.microsoft.com/v1.0/security/cases/ediscoveryCases/{{ediscoveryCaseId}}
Request Body
{"externalId"=>"Updated external case value 12345"}
PATCH https://graph.microsoft.com/v1.0/security/cases/ediscoveryCases/{{ediscoveryCaseId}}
{"externalId"=>"Updated external case value 12345"}