Update submodule mavlink to latest Mon Mar 11 00:39:26 UTC 2024

    - mavlink in PX4/Firmware (a078031): mavlink/mavlink@c4a5c49
    - mavlink current upstream: mavlink/mavlink@a3558d6
    - Changes: mavlink/mavlink@c4a5c49...a3558d6

    a3558d6b 2024-03-07 Hamish Willee - common - DO_FENCE_ENABLE/PARACHUTE fix (#2090)
b9730e0f 2024-03-06 olliw42 - update RADIO_RC_CHANNELS to latest, remove all mlrs from storm32.xml (#1919)
7fed0268 2024-03-06 Patrick José Pereira - common: MAV_CMD_DO_SET_SYS_CMP_ID: Add first version (#2082)
2909b481 2024-03-06 Hamish Willee - Update Pymavlink (#2089)
e9b532a9 2024-03-05 Randy Mackay - common: add set-camera-source command (#2079)
bcdbeb7f 2024-03-01 auturgy - Allow individual fences to be enabled and disabled (#2085)
2f8403d1 2024-02-29 Hamish Willee - MAV_CMD_ODID_SET_EMERGENCY -  (#2086)
daa59c02 2024-02-22 Peter Barker - common.xml: add a command to deal with safety switch (#2081)
977332e2 2024-02-14 Hamish Willee - COMPONENT_INFORMATION_BASIC - add manufacturer date (#2078)
4fef7de2 2024-02-07 Randy Mackay - Common: rename SMART_BATTERY_INFO to BATTERY_INFO and add SOH (#2070)
3865b311 2024-02-01 Hamish Willee - FLIGHT_INFORMATION - description to match PX4 (#2067)
f80e6818 2024-01-31 KonradRudin - development.xml: merge both MAV_CMD enums together (#2074)