Fix an issue with kubernetes_node_taint

[arybolovlev]

Description

Fix an issue when updating taint in the kubernetes_node_taint resource does not update the ID in the state file.

Acceptance tests

• Have you added an acceptance test for the functionality being added?
• Have you run the acceptance tests on this branch?

Output from acceptance testing:

$ make testacc TESTARGS="-count 1 -run ^TestAccKubernetesResourceNodeTaint"

=== RUN   TestAccKubernetesResourceNodeTaint_basic
--- PASS: TestAccKubernetesResourceNodeTaint_basic (2.17s)
=== RUN   TestAccKubernetesResourceNodeTaint_MultipleBasic
--- PASS: TestAccKubernetesResourceNodeTaint_MultipleBasic (4.86s)
PASS
ok  	github.com/hashicorp/terraform-provider-kubernetes/kubernetes	7.864s

Release Note

Release note for CHANGELOG:

`resource/kubernetes_node_taint`: Fix an issue when updating taint does not update the ID in the state file.

References

N/A.

Community Note

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