Antithesis instrumentation improvements (#5213)

* Rename ASSERT to XRPL_ASSERT
* Upgrade to Anthithesis SDK 0.4.4, and use new 0.4.4 features
  * automatic cast to bool, like assert
* Add instrumentation workflow to verify build with instrumentation enabled

include/xrpl/beast/utility/Journal.h

@@ -205,7 +205,7 @@ public:
         */
         Stream(Sink& sink, Severity level) : m_sink(sink), m_level(level)
         {
-            ASSERT(
+            XRPL_ASSERT(
                 m_level < severities::kDisabled,
                 "beast::Journal::Stream::Stream : maximum level");
         }