Summary of changes:
6594851... Update to 83.0.4103.97
6314d66... Fix crash in ServiceWorker
0b01f6a... Update to 83.0.4103.106
a5dfb5b... Disable python byte compiling
faad28c... Update to 83.0.4103.116
fc21bc1... Sync spec and sources with free/chromium-freeworld
3c5d625... Update ungoogled-chromium to 83.0.4103.116-1
2fdd830... Try alternative locations for the Widevine CDM library