BetaFlight 4.2.7 released

Safety Improvements:

• fixed bugs in the use of baro_sample_count causing potential runaway ascent (#10472, #10481).

Fixes:

• fixed missing BLHeli32 hardware version (#10290);
• fixed compiler warning when building the SITL target (#10363);
• fixed problem causing high error rates with bidirectional Dshot on H7 (#10383);
• fixed problem of getting stuck in the CMS menu when invoking multiple times with SRXL and CRSF (#10448);
• fixed compilation errors in the AK8975 magnetometer driver (#10464, #10477);
• fixed bug causing a lockup when setting ibata_scale to 0 (#10471);
• fixed validation for minimum and maximum cell voltage (#10473);
• fixed bug in displayport code leading to the potential for UART1 to be flooded with OSD messages (#10489, #10490).

Target Updates:

• added more features to target IFLIGHT_H743_AIO(#10451);
• added the AK8975 magnetometer driver to the Unified Targets (#10468).