don't run focus-dependent test on build machines, https://github.com/microsoft/vscode/issues/100828

extensions/vscode-api-tests/src/singlefolder-tests/window.test.ts

@@ -147,7 +147,10 @@ suite('vscode API - window', () => {
 	});
 
 	test('active editor not always correct... #49125', async function () {
-
+		if (process.env['BUILD_SOURCEVERSION']) {
+			this.skip();
+			return;
+		}
 		function assertActiveEditor(editor: TextEditor) {
 			if (window.activeTextEditor === editor) {
 				assert.ok(true);