Switch to tracking adafruit's fork of Pico-PIO-USB

Author: tannewt

.gitmodules

@@ -345,8 +345,8 @@
 	url = https://github.com/adafruit/Adafruit_CircuitPython_Wave.git
 [submodule "ports/raspberrypi/lib/Pico-PIO-USB"]
 	path = ports/raspberrypi/lib/Pico-PIO-USB
-	url = https://github.com/tannewt/Pico-PIO-USB.git
-	branch = better_timeouts
+	url = https://github.com/adafruit/Pico-PIO-USB.git
+	branch = main
 [submodule "lib/micropython-lib"]
 	path = lib/micropython-lib
 	url = https://github.com/micropython/micropython-lib.git