Skip the folio-deletion test where --run is not built

CI builds without Qt Qml, so --run is not compiled in and the test's
QElectroTech opened the project and waited until the 180 s timeout.
The test now skips when QET_HAS_SCRIPTING is not defined, as the other
--run tests are left out of such builds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019Wga9B92BNurDEtxxtCDxf

tests/qttest/tst_resaveunchanged.cpp

@@ -188,6 +188,9 @@ private slots:
 	// with no data. industrial.qet's folio 46 (index 45) holds such a part.
 	void deletedFolioKeepsTableChain()
 	{
+#ifndef QET_HAS_SCRIPTING
+		QSKIP("needs --run: this QElectroTech is built without Qt Qml");
+#endif
 		const QString out = m_dir.filePath(QStringLiteral("deleted_folio.qet"));
 		const QString script = m_dir.filePath(QStringLiteral("deleted_folio.js"));
 		QFile js(script);