Update bazel-toolchains pin (#433)
Update bazel-toolchains pin (#433)

This fixed Bazel CI failures (bazelbuild/bazel#6742) such as https://buildkite.com/bazel/bazel-with-downstream-projects-bazel/builds/613#0098d76c-1532-43d0-914e-cc506950c5b4
alexeagle/rules_nodejs,alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,alexeagle/rules_nodejs,alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs