[Scaling] Support stale queries

[cgbaker]

The scaling APIs would benefit from support for stale queries. This is a child issue of #7394

[stale]

Hey there

Since this issue hasn't had any activity in a while - we're going to automatically close it in 30 days. If you're still seeing this issue with the latest version of Nomad, please respond here and we'll keep this open and take another look at this.

Thanks!

[jrasell]

keep please

[marco-m]

For my understanding, "stale queries" are the same as what is described in https://www.nomadproject.io/api-docs#consistency-modes ?

[jrasell]

That is correct @marco-m

[github-actions]

I'm going to lock this issue because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.