ci: make sure artifacts are saved for fork PRs (#35593)

appveyor.yml

@@ -225,7 +225,7 @@ for:
     on_finish:
       # Uncomment this lines to enable RDP
       #- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
-      - cd ..
+      - cd C:\projects\src
       - if exist out\Default\windows_toolchain_profile.json ( appveyor-retry appveyor PushArtifact out\Default\windows_toolchain_profile.json )
       - if exist out\Default\dist.zip (appveyor-retry appveyor PushArtifact out\Default\dist.zip)
       - if exist out\Default\shell_browser_ui_unittests.exe (appveyor-retry appveyor PushArtifact out\Default\shell_browser_ui_unittests.exe)