Backport of Port: "retryOn" configuration on ServiceRouter CRD into release/1.1.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #3308 to be assessed for backporting due to the inclusion of the label backport/1.1.x.

🚨

Warning automatic cherry-pick of commits failed. If the first commit failed,
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The person who merged in the original PR is:
@DanStough
This person should manually cherry-pick the original PR into a new backport PR,
and close this one when the manual backport PR is merged in.

merge conflict error: POST https://api.github.com/repos/hashicorp/consul-k8s/merges: 409 Merge conflict []

The below text is copied from the body of the original PR.

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Changes proposed in this PR:

• This is a port of Adding support for retryOn in Service Router spec #2435 into a PR that can run on the HashiCorp CI. It adds support for the retryOn field that is missing from the CRD.
• I ensured everything was re-generated cleanly. This added the missing license header to some missing files.

Closes #3207

How I've tested this PR: Unit tests.

How I expect reviewers to test this PR: 🔍

Checklist:

• Tests added
• CHANGELOG entry added

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Overview of commits

• 57fe532 - 78bc22a

[hashicorp-cla]

All committers have signed the CLA.