Update Packages for 6.8.1 in trunk.
This includes the following changes:
This was done in the 6.8 branch in [60199]. Since trunk's packages have not yet been updated for 6.9, this will allow for bug fixes in the 6.8 branch to also be available to people testing trunk.
Props wildworks, 0mirka00, sourav08, mamaduka, megane9988, jorbin, dsawyers, iamkingsleyf, soean, sc0ttkclark, presstoke, yogeshbhutkar, joen, joedolson, talldanwp, jarekmorawski, yogeshbhutkar, fabiankaegy, justlevine, desrosj.
Fixes #63366.