Bump Terraform kubernetes provider version to 2.28.1

[jenkins-infra-updatecli]

Bump Terraform `kubernetes` provider version

Update Terraform lock file

changes detected: "hashicorp/kubernetes" updated from "2.28.0" to "2.28.1" in file ".terraform.lock.hcl"

2.28.1

Changelog retrieved from:
	https://github.com/hashicorp/terraform-provider-kubernetes/releases/tag/v2.28.1
HOTFIX:

* `manifest_decode()`: fix handling of manifests containing null values [[GH-2461](https://github.com/hashicorp/terraform-provider-kubernetes/issues/2461)]

Jenkins pipeline link

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[dduportal]

No changes. Your infrastructure matches the configuration.