fix ci: move to stdexec::inline_scheduler

Move from `exec::inline_scheduler` to `stdexec::inline_scheduler`.

Looks like the definition has been deprecated and is pointing to
`stdexec::inline_scheduler` anyways.

the relevant header
```

namespace exec {
  // A simple scheduler that executes its continuation inline, on the
  // thread of the caller of start().
  using inline_scheduler
    [[deprecated("Use stdexec::inline_scheduler instead")]] = stdexec::inline_scheduler;
} // namespace exec
```

Tested: Inspection only.

Fixes: 10d0b4b7d1498cfd5c3d37edea271a54d1984e41
Change-Id: I1d23cb624e8902c541eeb31bd31155a3207a2da9
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/platform-mc/sensor_manager.cpp b/platform-mc/sensor_manager.cpp
index 1cd4826..6a1994d 100644
--- a/platform-mc/sensor_manager.cpp
+++ b/platform-mc/sensor_manager.cpp
@@ -155,7 +155,7 @@
                 rcOpt = PLDM_SUCCESS;
             }
         }),
-        exec::default_task_context<void>(exec::inline_scheduler{}));
+        exec::default_task_context<void>(stdexec::inline_scheduler{}));
 }
 
 exec::task<int> SensorManager::doSensorPollingTask(pldm_tid_t tid)