Add "field_manager" attribute

[jrhouston]

Description

Adds a "field_manager" attribute to the kubernetes_labels, kubernetes_annotations, and kubernetes_config_map_v1_data resources to allow configuring of the field manager name from the currently hard coded default of Terraform.

This will allow users to specify the manager name if they wish to have multiple Terraform resources that manage different fields of the same Kubernetes resource.

Fixes #1690

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:

TF_ACC=1 go test "/Users/john/dev/hashicorp/terraform-provider-kubernetes/kubernetes" -v -count=1 -run 'TestAccKubernetes(Labels|Annotations|ConfigMapV1Data)' -timeout 3h
=== RUN   TestAccKubernetesAnnotations_basic
--- PASS: TestAccKubernetesAnnotations_basic (29.02s)
=== RUN   TestAccKubernetesConfigMapV1Data_basic
--- PASS: TestAccKubernetesConfigMapV1Data_basic (27.20s)
=== RUN   TestAccKubernetesLabels_basic
--- PASS: TestAccKubernetesLabels_basic (27.39s)
PASS
ok  	github.com/hashicorp/terraform-provider-kubernetes/kubernetes	84.350s

Release Note

Release note for CHANGELOG:

Add field_manager attribute

References

Community Note

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[jrhouston]

cc @BBBmau as you will probably want to add this attribute to the kubernetes_env resource you're working on.

[BBBmau]

Got it, I'll be sure to add the field to kubernetes_env resource. Looks a lot cleaner with its own field_manager attribute

[alexsomesan]

Nice and simple! Only one observation about handling empty string value.

[awx-fuyuanchu]

Hi guys, pretty awesome to have the issue fixed. May I know the target due date of the next release?

[valorl]

Same here, any indication on when to expect this in registry ? It's a significant blocker for us so would be greatly appreciated.

[LukasKnuth]

It's now available in the 2.15.0 release!

[github-actions]

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