Roll CAS Client from 9b7184de3cca to ec87456d811b

https://chromium.googlesource.com/infra/infra.git/+log/9b7184de3cca..ec87456d811b

2026-06-03 chromium-autoroll@skia-public.iam.gserviceaccount.com Roll luci-go from 767c10810e6f to 60f7e35612f4 (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 chanli@google.com,peepsi-tod-team@google.com,vadimsh@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://issues.skia.org/issues/new?component=1389291&template=1850622

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

Tbr: chanli@google.com,vadimsh@google.com
Change-Id: Iabc5ec6b8fa4ff9bc6ee9f8d0c1c9bb79acfc9af
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/7900615
Bot-Commit: chromium-autoroll@skia-public.iam.gserviceaccount.com <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll@skia-public.iam.gserviceaccount.com <chromium-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/recipe_modules/cas/resources/infra.sha1 b/recipe_modules/cas/resources/infra.sha1
index e9af070..1d38014 100644
--- a/recipe_modules/cas/resources/infra.sha1
+++ b/recipe_modules/cas/resources/infra.sha1
@@ -1 +1 @@
-git_revision:7257396558bc9c7c7e7bc5fdb9225f9f3bfd89d7
+git_revision:ec87456d811bea90f5cc0716fd9e7786562a0b70