Backport of docs: Update k8s/connect/create-sameness-groups into release/1.16.x

[dhiaayachi]

Backport

Overview of commits

- Changing the ExportServices CRD name to reflect the partition it refers to

This PR is auto-generated from hashicorp#20317 to be assessed for backporting due to the inclusion of the label backport/1.16.

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@krastin
This person should manually cherry-pick the original PR into a new backport PR,
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The below text is copied from the body of the original PR.

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Description

A small change to the export group name reflecting the local partition being exported from as defined in the Exported Services Configuration docs.

Testing & Reproduction steps

None

Links

https://developer.hashicorp.com/consul/docs/connect/config-entries/exported-services#configuration

PR Checklist

• updated test coverage
• external facing docs updated
• appropriate backport labels added
• not a security concern

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Overview of commits

• ad1d4f3