Update pipewire to 0.3.38

Highlighted Changes:

• Topic based logging was added to improve debugging
• An off-by-one error was fixed in the audio resampler that could cause distortion when downsampling
• Various bluetooth compatibility improvements
• More fixes and improvements

Full changelog available here

• checked pactl info
• played audio from various sources
• played a Steam game and checked audio
• connected my bluetooth headphones and listened to Hildegard von Blingin'