Bug 1676499 - Update perfherder data schema for visual metrics.

[gmierz]

This patch updates the schema used for validating visual metrics and it also adds a hyphen to the list of possible characters in the tags entries.

See this bug for more information: https://bugzilla.mozilla.org/show_bug.cgi?id=1676499

Try run for these changes: https://treeherder.mozilla.org/jobs?repo=try&tier=1%2C2%2C3&revision=40c831b4b9d0f1e2899d53dbe5bff8da229d6f35

[jmaher]

as this is in the mozilla-mobile repo, why is Firefox as an enum, that got me to question is there anything we need to update in mozilla-central for geckoview perf testing as well?

[codecov-io]

Codecov Report

Merging #16837 (21fcfc6) into master (c465521) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #16837   +/-   ##
=========================================
  Coverage     30.26%   30.26%           
  Complexity     1231     1231           
=========================================
  Files           455      455           
  Lines         18654    18654           
  Branches       2577     2577           
=========================================
  Hits           5645     5645           
  Misses        12562    12562           
  Partials        447      447           

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[gmierz]

as this is in the mozilla-mobile repo, why is Firefox as an enum, that got me to question is there anything we need to update in mozilla-central for geckoview perf testing as well?

This is more of a sync update for the schema from here: https://searchfox.org/mozilla-central/source/testing/mozharness/external_tools/performance-artifact-schema.json

I think we need to build a better method for keeping this schema up to date (along with the visual-metrics script).

I have a PR open here to update Treeherder's schema: mozilla/treeherder#6893
And here's the phab patch to update the mozilla-central schema: https://phabricator.services.mozilla.com/D98359

[gabrielluong]

Rubberstamping this for Fenix.

[gmierz]

@gabrielluong hi can we get this landed?