fix(gates): select a character in connected graphical runs

tools/run-connected-r6-soak.ps1

@@ -730,6 +730,9 @@ $renderPackGate = New-ConnectedRenderPackGateState `
     -Root $artifactDir `
     -Preset $RenderPackPreset `
     -SettingOverrides $RenderPackSettingOverrides
+$sessionConfigPath = New-ConnectedGraphicalSessionConfig `
+    -State $renderPackGate `
+    -Account $Account
 try {
 $binaryIdentity = Get-ConnectedGateBinaryIdentity `
     -Repository $Repository -Executable $exe -SkipBuild:$SkipBuild
@@ -805,6 +808,7 @@ $envDisclosure | ConvertTo-Json -Depth 4 |
 
 try {
     $process = Start-Process -FilePath $exe -WorkingDirectory $Repository `
+        -ArgumentList @('--session-config', ('"' + $sessionConfigPath + '"')) `
         -RedirectStandardOutput $stdoutLog -RedirectStandardError $stderrLog -PassThru
     Write-Marker (
         "launch pid=$($process.Id) binaryCommit=$commit sourceCommit=$sourceCommit " +
@@ -1055,7 +1059,13 @@ finally {
 }
 }
 finally {
-    Restore-ConnectedRenderPackGateEnvironment $renderPackGate
+    try {
+        Remove-ConnectedGraphicalSessionConfig `
+            -State $renderPackGate -Path $sessionConfigPath
+    }
+    finally {
+        Restore-ConnectedRenderPackGateEnvironment $renderPackGate
+    }
 }
 
 if ($failures.Count -gt 0) { exit 1 }