[TimestampTimer] Migrate to `miosix::getTime()` and deprecate it

CMakeLists.txt

src/shared/drivers/timer/TimestampTimer.cpp

src/shared/drivers/timer/TimestampTimer.h

src/shared/utils/TimeUtils.h

src/tests/algorithms/NAS/test-nas-with-triad.cpp

src/tests/catch/test-gptimer.cpp

src/tests/drivers/timer/test-timestamptimer.cpp

src/tests/sensors/test-l3gd20-fifo.cpp

src/tests/sensors/test-l3gd20.cpp