The meta quest browser has an issue with the initial design where the all the dependencies within the same tree are overridden with the solution URL's scheme. This fix updates fetch to add a .gclient entry instead of implicitly overriding the URL's scheme.

Bug: 1336027
Change-Id: Iabe5b9017f6eb9e682a0c721f43dd5f347ffcbfb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3703942Reviewed-by: Josip Sokcevic <sokcevic@google.com>
Commit-Queue: Aravind Vasudevan <aravindvasudev@google.com>