Display correct Minimum Python requirement

PR #19281.

src/gui/mainwindow.cpp

@@ -1719,14 +1719,14 @@ void MainWindow::on_actionSearchWidget_triggered()
 #ifdef Q_OS_WIN
             const QMessageBox::StandardButton buttonPressed = QMessageBox::question(this, tr("Old Python Runtime")
                 , tr("Your Python version (%1) is outdated. Minimum requirement: %2.\nDo you want to install a newer version now?")
-                    .arg(pyInfo.version.toString(), u"3.5.0")
+                    .arg(pyInfo.version.toString(), u"3.7.0")
                 , (QMessageBox::Yes | QMessageBox::No), QMessageBox::Yes);
             if (buttonPressed == QMessageBox::Yes)
                 installPython();
 #else
             QMessageBox::information(this, tr("Old Python Runtime")
                 , tr("Your Python version (%1) is outdated. Please upgrade to latest version for search engines to work.\nMinimum requirement: %2.")
-                .arg(pyInfo.version.toString(), u"3.5.0"));
+                .arg(pyInfo.version.toString(), u"3.7.0"));
 #endif
             return;
         }