chore: update KiCad dates

chore: fix GPIO label names

chore(main): release pico2-test-mule 0.2.1 (#18) * chore(main): release pico2-test-mule 0.2.1 * chore: update KiCad revisions --------- Co-authored-by: mikesmitty

chore: update KiCad dates

fix: update to kicad 9.0

chore(main): release pico2-test-mule 0.2.0 (#2) * chore(main): release pico2-test-mule 0.2.0 * chore: update KiCad revisions --------- Co-authored-by: mikesmitty

chore: add hardware revision and date codes

chore: reorder i2s gpios chore: add qr code to silkscreen

feat: add new pico2 test mule for firmware dev