Bug 1593145 [wpt PR 20039] - Switch to community TC deployment, a=testonly

Automatic update from web-platform-tests
Bug 1574668 - switch to community TC deployment (#20039)

Within the new "Community" deployment of Taskcluster, the worker pools
(provisionerId/workerType) are different -- WPT has a dedicated worker
pool all to itself.  This uses the new worker pool names in the new
deployment.  Once things are migrated to the new deployment, the logic
here can be removed and replaced with simple strings.
--

wpt-commits: 8aeb44900921dce5401a91a2ede05dbbbb2d56f2
wpt-pr: 20039

Differential Revision: https://phabricator.services.mozilla.com/D53602

testing/web-platform/tests/.taskcluster.yml

@@ -4,6 +4,19 @@ policy:
 tasks:
   $let:
     event_str: {$json: {$eval: event}}
+    provisionerId:
+      $if: 'taskcluster_root_url == "https://taskcluster.net"'
+      then: aws-provisioner-v1
+      else: proj-wpt
+    workerType:
+      $if: 'taskcluster_root_url == "https://taskcluster.net"'
+      then:
+        $if: event.repository.full_name == 'web-platform-tests/wpt'
+        then:
+          wpt-docker-worker
+        else:
+          github-worker
+      else: ci
   in:
     $flattenDeep:
       - $if: tasks_for == "github-push"
@@ -52,13 +65,8 @@ tasks:
               taskGroupId: {$eval: 'as_slugid("task group")'}
               created: {$fromNow: ''}
               deadline: {$fromNow: '24 hours'}
-              provisionerId: aws-provisioner-v1
-              workerType:
-                $if: event.repository.full_name == 'web-platform-tests/wpt'
-                then:
-                  wpt-docker-worker
-                else:
-                  github-worker
+              provisionerId: ${provisionerId}
+              workerType: ${workerType}
               metadata:
                 name: wpt-${browser.name}-${browser.channel}-${chunk[0]}-${chunk[1]}
                 description: >-
@@ -155,13 +163,8 @@ tasks:
                 taskGroupId: {$eval: 'as_slugid("task group")'}
                 created: {$fromNow: ''}
                 deadline: {$fromNow: '24 hours'}
-                provisionerId: aws-provisioner-v1
-                workerType:
-                  $if: event.repository.full_name == 'web-platform-tests/wpt'
-                  then:
-                    wpt-docker-worker
-                  else:
-                    github-worker
+                provisionerId: ${provisionerId}
+                workerType: ${workerType}
                 metadata:
                   name: ${operation.name}
                   description: ${operation.description}
@@ -321,13 +324,8 @@ tasks:
                 taskGroupId: {$eval: 'as_slugid("task group")'}
                 created: {$fromNow: ''}
                 deadline: {$fromNow: '24 hours'}
-                provisionerId: aws-provisioner-v1
-                workerType:
-                  $if: event.repository.full_name == 'web-platform-tests/wpt'
-                  then:
-                    wpt-docker-worker
-                  else:
-                    github-worker
+                provisionerId: ${provisionerId}
+                workerType: ${workerType}
                 metadata:
                   name: ${operation.name}
                   description: ${operation.description}