Bug (typo) in computer extension attribute acc test

[w0de]

    resource_jamf_computer_extension_attribute_test.go:12: Step 1/3 error: Error running pre-apply refresh: exit status 1

        Error: expected data_type to be one of [String Integer Date], got string

          with jamf_computer_extension_attribute.extensionattribute-script,
          on terraform_plugin_test.tf line 4, in resource "jamf_computer_extension_attribute" "extensionattribute-script":
           4: 		data_type = "string"