src: include util-inl.h in worker_agent.cc

Otherwise, the compiler complains about a missing definition
for the (inline) `Calloc` function.

PR-URL: #23880
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Matheus Marchini <mat@mmarchini.me>

src/inspector/worker_agent.cc

@@ -2,6 +2,7 @@
 
 #include "main_thread_interface.h"
 #include "worker_inspector.h"
+#include "util-inl.h"
 
 namespace node {
 namespace inspector {