MAINTAINERS: Add tracepoint-update.c to TRACING section

Place the file scripts/tracepoint-update.c in the TRACING section.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Link: https://patch.msgid.link/20251208192544.5f2392a7@debian
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Author: rostedt

MAINTAINERS

@@ -26298,6 +26298,7 @@ F:	include/trace/
 F:	kernel/trace/
 F:	kernel/tracepoint.c
 F:	scripts/tracing/
+F:	scripts/tracepoint-update.c
 F:	tools/testing/selftests/ftrace/
 
 TRACING MMIO ACCESSES (MMIOTRACE)