Roll CAS Client from ff9307900bad to 8e7b251208a2

https://chromium.googlesource.com/infra/infra.git/+log/ff9307900bad..8e7b251208a2

2023-01-19 chromium-autoroll@skia-public.iam.gserviceaccount.com Roll chromiumos/infra/proto from ea364a6b17f1 to 35412396a455 (1 revision)
2023-01-19 chromium-autoroll@skia-public.iam.gserviceaccount.com Roll luci-go from cfbd18fb316b to 46ea5c9bb337 (1 revision)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/cas-recipes-py
Please CC qyearsley@google.com,yuanjunh@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: qyearsley@google.com,yuanjunh@google.com
Change-Id: Id60c572922145ca905284a97ac7606fc64a86439
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/4181453
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/recipe_modules/cas/resources/infra.sha1 b/recipe_modules/cas/resources/infra.sha1
index 358ebcc..1d08038 100644
--- a/recipe_modules/cas/resources/infra.sha1
+++ b/recipe_modules/cas/resources/infra.sha1
@@ -1 +1 @@
-git_revision:81e5cdad29bb4c7aaad98c843637513db3155b0d
+git_revision:8e7b251208a27888583d70308b8387948d4142eb