Re-enable FlatBuffer in downstream
It's green with Bazel@HEAD again:
@@ -195,7 +195,6 @@ DOWNSTREAM_PROJECTS_PRODUCTION = {
"git_repository": "https://github.com/google/flatbuffers.git",
"http_config": "https://raw.githubusercontent.com/google/flatbuffers/master/.bazelci/presubmit.yml",
"pipeline_slug": "flatbuffers",
- "disabled_reason": "https://github.com/bazelbuild/bazel/issues/13811",
},
"Flogger": {
"git_repository": "https://github.com/google/flogger.git",
