Don't run the CI if only .md files were changed

[adamsitnik]

While reviewing #36431 where only .md were edited, I've noticed that the CI was triggered and all tests executed:

We had a similar problem in the performance repo in the past which was solved by: dotnet/performance#355

I am an AzDO n00b and I could not find azure-pipelines.yml in this repo, so this is why I create an issue instead of sending a PR.

/cc @ViktorHofer

[ghost]

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[ViktorHofer]

@adamsitnik seems like we can't easily ignore all .MD files. I think there's a uservoice ticket somewhere against AzDO to support that.

[ViktorHofer]

Moving to future, let's see if Github actions will allow this.

[ViktorHofer]

Closing as not actionable (AzDO limitation). Feel free to reopen when we moved off AzDO.