[vpython] Bump prod vpython to match staging

From https://chromium.googlesource.com/infra/luci/luci-go:
git log c874f8ac98a7f1e2065922fc3663573145498c39..63bd11762eec0b8604bc89dcfb9de4f5dad3777a --oneline vpython

e638db97 [vpython] Normalize spec before verification.
22c141ce [vpython] Remove maximum script path length check.
b1e7bc36 [vpython] Better failure output.
3edc75c8 [vpython] Better VirtualEnv isolation.
42b0378c [vpython] Use native CIPD verifier.
92a71c21 [vpython] Fix and update documentation.

R=nodir@chromium.org, vadimsh@chromium.org

Bug:
Change-Id: I05999eaaa9c96c8972640ef05dc403fca6337d77
Reviewed-on: https://chromium-review.googlesource.com/732283
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
1 file changed
tree: fb0f0f12bda8912dc7218a76a81f59fc1ce95e25
  1. infra/
  2. masters/
  3. scripts/
  4. site_config/
  5. slave/
  6. tests/
  7. third_party/
  8. .gitattributes
  9. .gitignore
  10. codereview.settings
  11. DEPS
  12. environment.cfg.py
  13. LICENSE
  14. OWNERS
  15. PRESUBMIT.py
  16. README.md
  17. WATCHLISTS
README.md

build

Hi build contributor! If you do any change in scripts/master/ or touching any master's html/ directories, you must restart master.chromium.fyi first and ensure that it still works before restarting other masters.

Recipes

If you're here to make a change to ‘recipes’ (the code located in scripts/slave/recipes*), please take a look at the README for more information pertaining to recipes.