scripted-diff: Rename LockAnnotation to LockAssertion

-BEGIN VERIFY SCRIPT-
git grep -l LockAnnotation | xargs sed -i 's/LockAnnotation/LockAssertion/'
-END VERIFY SCRIPT-

src/qt/test/wallettests.cpp

@@ -145,7 +145,7 @@ void TestGUI()
     }
     {
         auto locked_chain = wallet->chain().lock();
-        LockAnnotation lock(::cs_main);
+        LockAssertion lock(::cs_main);
 
         WalletRescanReserver reserver(wallet.get());
         reserver.reserve();