[CI] Sign VCM x86 module dll (#13129)

.pipelines/pipeline.user.windows.yml

@@ -170,6 +170,7 @@ build:
             # TODO(yuyoyuppe): uncomment when VCM should be enabled
             #- 'modules\VideoConference\VideoConferenceModule.dll'
             #- 'modules\VideoConference\VideoConferenceProxyFilter_x64.dll'
+            #- 'modules\VideoConference\VideoConferenceProxyFilter_x86.dll'
             - 'Settings\ManagedTelemetry.dll'
             - 'Settings\Microsoft.PowerToys.Settings.UI.exe'
             - 'Settings\Microsoft.PowerToys.Settings.UI.Lib.dll'