stdexec: pass scheduler to default_task_context

The latest version of stdexec[1] does not allow a default constructed
`default_task_context` but requires a scheduler to be passed in.  The
previous default was to use an `inline_scheduler` so explicitly pass
that in.

[1]: https://github.com/openbmc/sdbusplus/commit/5cee91570368554a7fcbbd9418f65efda449fa70

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib210b42ba5272e0176cd4423b156ca6372115a55
diff --git a/platform-mc/terminus_manager.cpp b/platform-mc/terminus_manager.cpp
index 1fe5c79..93fdb09 100644
--- a/platform-mc/terminus_manager.cpp
+++ b/platform-mc/terminus_manager.cpp
@@ -141,7 +141,7 @@
     auto& [scope, rcOpt] = discoverMctpTerminusTaskHandle.emplace();
     scope.spawn(discoverMctpTerminusTask() |
                     stdexec::then([&](int rc) { rcOpt.emplace(rc); }),
-                exec::default_task_context<void>());
+                exec::default_task_context<void>(exec::inline_scheduler{}));
 }
 
 TerminiMapper::iterator