v0.8.0

Release Notes

• Upgrade pixi tools and refactor pixi tasks
• Add missing stub functions to libs/pal/stubs/pal.c
• Update compile sizes in README.md
• Only check valid tasks in am_pal_tasks_get_own_id()
• Add libuv port and amast_libuv.c to the release package
• am_event_recall() allows recalling without callback
• Improve HSM and FSM documentation
• Rename AM_ASYNC_BREAK() to AM_ASYNC_EXIT()
• Use return to exit from async/await context
• Fix shot_in_ticks bug in am_timer_arm()
• Rework apps/examples/async/main.c