chore(deps): update com_grail_bazel_toolchain digest to b397ad2 (#10)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| com_grail_bazel_toolchain | http_archive | digest | `41ff2a0` ->
`b397ad2` |

---

### Configuration

📅 **Schedule**: Branch creation - "after 1am and before 7am" in timezone
America/Vancouver, Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://app.renovatebot.com/dashboard#github/ecsact-dev/ecsact_cli).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNS45NS4xIiwidXBkYXRlZEluVmVyIjoiMzUuOTUuMSIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

WORKSPACE.bazel

@@ -72,9 +72,9 @@ hedron_compile_commands_setup()
 
 http_archive(
     name = "com_grail_bazel_toolchain",
-    sha256 = "89d6069497e25cb30c5572f24040924283990cd881d9f650af9b3806354525dd",
-    strip_prefix = "bazel-toolchain-41ff2a05c0beff439bad7acfd564e6827e34b13b",
-    url = "https://github.com/grailbio/bazel-toolchain/archive/41ff2a05c0beff439bad7acfd564e6827e34b13b.zip",
+    sha256 = "307e32d3cd80ed96245270350cef833b72116ec8d5241487152e517c622256ce",
+    strip_prefix = "bazel-toolchain-b397ad28f7927aed01e09922e6ecc4b9244ddc9e",
+    url = "https://github.com/grailbio/bazel-toolchain/archive/b397ad28f7927aed01e09922e6ecc4b9244ddc9e.zip",
 )
 
 load("@com_grail_bazel_toolchain//toolchain:deps.bzl", "bazel_toolchain_dependencies")