feat(ui5): Add missing use strict

Author: kineticjs

plugins/ui5/skills/ui5-best-practices-opa5/references/enable-testrecorder-tooling.md

@@ -51,6 +51,7 @@ The `sap.ui.testrecorder` library provides the module `sap.ui.testrecorder.Contr
 
 ```javascript
 sap.ui.require(["sap/ui/testrecorder/ControlTree"], async (ControlTree) => {
+    "use strict";
     // Navigate to the state where the anchor bar is visible, then:
     await ControlTree.search("anchorBar"); // When resolved, inspect the returned markdown snapshot and pick nodeId, e.g. Button nodeId="1_8" text="Methods"