chore: Enable clang-tidy misc checks (#6655)

src/test/consensus/LedgerTiming_test.cpp

@@ -66,7 +66,7 @@ class LedgerTiming_test : public beast::unit_test::suite
         using namespace std::chrono_literals;
         // A closeTime equal to the epoch is not modified
         using tp = NetClock::time_point;
-        tp def;
+        tp const def;
         BEAST_EXPECT(def == roundCloseTime(def, 30s));
 
         // Otherwise, the closeTime is rounded to the nearest