Merge pull request adafruit#2262 from jepler/cpb-speaker-disable

cpb: Disable the onboard speaker until request

Merge pull request adafruit#2155 from tannewt/ignore_existing_files

When uploading release assets, ignore those already uploaded.

Merge pull request adafruit#2135 from jepler/audio-stuttering-background

Reduce audio stuttering by running background tasks

Merge pull request adafruit#2113 from tannewt/displayio_hidden

Add .hidden to TileGrid and Group

Merge pull request adafruit#2092 from dhalbert/bleio-api-revamp

Bleio attribute api revamp

Merge pull request adafruit#1999 from tannewt/turtleboosters

Track a dirty area for in-memory bitmaps

Merge pull request adafruit#1999 from tannewt/turtleboosters

Track a dirty area for in-memory bitmaps

Merge pull request adafruit#1993 from dhalbert/ble-scanner

bleio: add central and scanner functionality, cleanup bleio API, some code restructure

Merge pull request adafruit#1990 from kattni/pyruler

Adding PyRuler to CircuitPython.

Merge pull request adafruit#1975 from tannewt/merge_in_402

Merge in 4.0.2