fix: add qr code for serial numbers

chore(main): release charger-module 0.12.1 (#66) * chore(main): release charger-module 0.12.1 * chore: update KiCad revisions --------- Co-authored-by: mikesmitty

fix: correct rp2 usb pin order

chore(main): release charger-module 0.12.0 (#65) * chore(main): release charger-module 0.12.0 * chore: update KiCad revisions --------- Co-authored-by: mikesmitty

fix: increase i2c pullup cap

chore: switch jumper footprints

feat: split i2c network

chore(main): release charger-module 0.11.7 (#62) * chore(main): release charger-module 0.11.7 * chore: update KiCad revisions --------- Co-authored-by: mikesmitty

fix: reference vout voltage divider to gndusb for accuracy

chore: add tweaks for production