Add retry timeout and wait period between checks

msi/build/build.ps1

@@ -93,14 +93,24 @@ Get-ChildItem .\bin\Release -Filter *.msi -Recurse |
             Write-Host "Signing installer"
             # always disable tracing here
             Set-PSDebug -Trace 0
-            while($True) {
+            $retries = 10
+            while($retries -gt 0) {
                 $p = Start-Process -Wait -PassThru -NoNewWindow -FilePath "signtool.exe" -ArgumentList "sign /v /f `"${env:PKCS12_FILE}`" /p ${env:SIGN_STOREPASS} /t http://timestamp.verisign.com/scripts/timestamp.dll /d `"Jenkins Automation Server ${JenkinsVersion}`" /du `"https://jenkins.io`" $_.FullName"
                 $p.WaitForExit()
                 # we will retry until we get a good exit code
                 if($p.ExitCode -eq 0) {
                     break
+                } else {
+                    Start-Sleep -Seconds 10
+                    $retries--
                 }
             }
+
+            if($retries -lt 0) {
+                Write-Error "signtool did not complete successfully after 10 tries"
+                exit -1
+            }
+
             if($UseTracing) { Set-PSDebug -Trace 1 }
 
             Write-Host "Checking the signature"