[CI] Use Download Task for X64 and Bypass ARM Testing for Forked Repositories (#37617)

* use x64

* add conditation for arm tests

* check repo

* use System.PullRequest.IsFork

* remove print

* remove condition

.pipelines/v2/templates/job-test-project.yml

@@ -61,9 +61,18 @@ jobs:
         reg add "HKLM\Software\Policies\Microsoft\Edge\WebView2\ReleaseChannels" /v PowerToys.exe /t REG_SZ /d "3"
       displayName: "Enable WebView2 Canary Channel"
 
-  - template: steps-download-artifacts-with-azure-cli.yml
-    parameters:
-      artifactName: $(TestArtifactsName)
+  - ${{ if ne(parameters.platform, 'arm64') }}:
+      - download: current
+        displayName: Download artifacts
+        artifact: $(TestArtifactsName)
+        patterns: |-
+          **
+          !**\*.pdb
+          !**\*.lib
+  - ${{ else }}:
+      - template: steps-download-artifacts-with-azure-cli.yml
+        parameters:
+          artifactName: $(TestArtifactsName)
 
   - template: steps-ensure-dotnet-version.yml
     parameters:

.pipelines/v2/templates/pipeline-ci-build.yml

@@ -72,7 +72,7 @@ stages:
               winAppSDKVersionNumber: ${{ parameters.winAppSDKVersionNumber }}
               useExperimentalVersion: ${{ parameters.useExperimentalVersion }}
 
-    - ${{ if eq(parameters.runTests, true) }}:
+    - ${{ if and(eq(parameters.runTests, true), not(and(eq(platform, 'arm64'), eq(variables['System.PullRequest.IsFork'], true)))) }}:
       - stage: Test_${{ platform }}
         displayName: Test ${{ platform }}
         dependsOn: