Update okta/okta requirement from ~> 4.3.0 to ~> 4.13.1

Updates the requirements on [okta/okta](https://github.com/okta/terraform-provider-okta) to permit the latest version.
- [Release notes](https://github.com/okta/terraform-provider-okta/releases)
- [Changelog](https://github.com/okta/terraform-provider-okta/blob/master/CHANGELOG.md)
- [Commits](okta/terraform-provider-okta@v4.3.0...v4.13.1)

---
updated-dependencies:
- dependency-name: okta/okta
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

ops/services/okta-global/_config.tf

@@ -2,7 +2,7 @@ terraform {
   required_providers {
     okta = {
       source  = "okta/okta"
-      version = "~> 4.3.0"
+      version = "~> 4.13.1"
     }
   }
   required_version = "~> 1.9.6"