Show the latest API Version in Examples

[whitneygriffith]

Part of #3127
Resolves istio.io/14992

Depends on tools/2921
Builds on #3188, I will rebase once its merged

[istio-testing]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[whitneygriffith]

I noticed in the protos there are aliases based on the version. For example, // $aliases: [/docs/reference/config/networking/v1alpha3/destination-rule]. How is this used? Should we remove or update this?

[whitneygriffith]

@ericvn PTAL

[ericvn]

I noticed in the protos there are aliases based on the version. For example, // $aliases: [/docs/reference/config/networking/v1alpha3/destination-rule]. How is this used? Should we remove or update this?

If I understand your question, this is simply telling Hugo that there is another address that can point to this page (it's typically used when moving or renaming a page). ie, /docs/reference/config/networking/v1alpha3/destination-rule and /docs/reference/config/networking/v1beta1/destination-rulecould be resolved and point to a/docs/reference/config/networking/v1/destination-rule` page.

[istio-testing]

In response to a cherrypick label: new pull request created: #3207