change timeout for compute destroy operation

Author: jotruon

oci/core_instance_resource.go

@@ -35,7 +35,7 @@ func CoreInstanceResource() *schema.Resource {
 		Timeouts: &schema.ResourceTimeout{
 			Create: getTimeoutDuration("45m"),
 			Update: getTimeoutDuration("45m"),
-			Delete: getTimeoutDuration("45m"),
+			Delete: getTimeoutDuration("75m"),
 		},
 		Create: createCoreInstance,
 		Read:   readCoreInstance,