Use newer bazelisk

I think the old version of bazelisk was not respecting the .bazelversion
file. Maybe because it was still looking for a WORKSPACE to find the
root (which no longer exists)?

For posterity, the old version (`bazelisk version`) is
Bazelisk version: v1.10.1 (Jul 2021)
https://github.com/bazelbuild/bazelisk/releases/tag/v1.10.1

The new version is
Bazelisk version: v1.27.0 (Aug 2025)
https://github.com/bazelbuild/bazelisk/releases/tag/v1.27.0

Change-Id: I760e57e53b3cf9944e7ce10849308210d7fa9184
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/1187557
Reviewed-by: Florin Malita <fmalita@google.com>
Auto-Submit: Kaylee Lubick <kjlubick@google.com>
Commit-Queue: Florin Malita <fmalita@google.com>