fix: link to customCredentialSupplierOktaWorkload (#2149)

Author: vverman

.readme-partials.yaml

@@ -1061,7 +1061,7 @@ body: |-
 
   The values for audience, service account impersonation URL, and any other builder field can also be found by generating a [credential configuration file with the gcloud CLI](https://cloud.google.com/iam/docs/workforce-obtaining-short-lived-credentials#use_configuration_files_for_sign-in).
 
-  For a sample on how to access Google Cloud resources from an Okta identity provider with a custom credential supplier, see [samples/customCredentialSupplierOktaWorkforce.js](https://github.com/googleapis/google-auth-library-nodejs/blob/main/samples/customCredentialSupplierOktaWorkforce.js).
+  For a sample on how to access Google Cloud resources from an Okta identity provider with a custom credential supplier, see [samples/customCredentialSupplierOktaWorkload.js](https://github.com/googleapis/google-auth-library-nodejs/blob/main/samples/customCredentialSupplierOktaWorkload.js).
 
   ### Using External Identities