message: Update to latest patchrelease of absl.
  This contains a minor change that will make sure it works with
  gcc11
diff: @@ -5,9 +5,9 @@ load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
  http_archive(
  name = "com_google_absl",
  - sha256 = "81c06514af7df8a18706c2b4cd134c2bae68c9877bcc9bb258b367beb14c83a5",
  - strip_prefix = "abseil-cpp-20200923",
  - urls = ["https://github.com/abseil/abseil-cpp/archive/20200923.zip"],
  + sha256 = "6622893ab117501fc23268a2936e0d46ee6cb0319dcf2275e33a708cd9634ea6",
  + strip_prefix = "abseil-cpp-20200923.3",
  + urls = ["https://github.com/abseil/abseil-cpp/archive/20200923.3.zip"],
  )
  http_archive(
  