message: tls: update BoringSSL to (3359).
diff: REPOSITORY_LOCATIONS = dict(
  boringssl = dict(
  # Use commits from branch "chromium-stable-with-bazel"
  - commit = "9df0c47bc034d60d73d216cd0e090707b3fbea58", # chromium-65.0.3325.146
  + commit = "c386d2b324468137bcbf2e7a1020da7579f7ab48", # chromium-66.0.3359.117
  remote = "https://github.com/google/boringssl",
  ),
  com_google_absl = dict(
  