Enable UnitTests in AccessibilitySnapshotDemo scheme

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: RoyalPineapple

Example/AccessibilitySnapshot.xcodeproj/xcshareddata/xcschemes/AccessibilitySnapshotDemo.xcscheme

@@ -85,7 +85,7 @@
             </SkippedTests>
          </TestableReference>
          <TestableReference
-            skipped = "YES">
+            skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "3D881955246E03C00061DA6A"