message: Update lmdb to 0.9.22
  This fix updates lmdb from 0.9.19 to 0.9.22. The old
  version (0.9.19) was released in 2016, which is quite old.
diff: @@ -463,11 +463,11 @@ def tf_workspace(path_prefix="", tf_repo_name=""):
  tf_http_archive(
  name = "lmdb",
  urls = [
  - "https://mirror.bazel.build/github.com/LMDB/lmdb/archive/LMDB_0.9.19.tar.gz",
  - "https://github.com/LMDB/lmdb/archive/LMDB_0.9.19.tar.gz",
  + "https://mirror.bazel.build/github.com/LMDB/lmdb/archive/LMDB_0.9.22.tar.gz",
  + "https://github.com/LMDB/lmdb/archive/LMDB_0.9.22.tar.gz",
  ],
  - sha256 = "108532fb94c6f227558d45be3f3347b52539f0f58290a7bb31ec06c462d05326",
  - strip_prefix = "lmdb-LMDB_0.9.19/libraries/liblmdb",
  + sha256 = "f3927859882eb608868c8c31586bb7eb84562a40a6bf5cc3e13b6b564641ea28",
  + strip_prefix = "lmdb-LMDB_0.9.22/libraries/liblmdb",
  build_file = clean_dep("//third_party:lmdb.BUILD"),
  )
  