test: Run unit tests regardless of 'Supported' amendment status (#5537)

src/test/app/Freeze_test.cpp

@@ -2094,7 +2094,7 @@ public:
             testNFTOffersWhenFreeze(features);
         };
         using namespace test::jtx;
-        auto const sa = supported_amendments();
+        auto const sa = testable_amendments();
         testAll(
             sa - featureDeepFreeze - featurePermissionedDEX -
             fixEnforceNFTokenTrustlineV2);