Build `hub` HEAD with Go

The `hub` 2.2.0 branch has been [merged into master](https://github.com/github/hub/pull/641).
HEAD requires Go and a different script to build.
The 1.x stable build should still work before 2.2.0 is officially released.

Closes #33407.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
RocksDB 3.6.1

Closes #33408.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
rocksdb: add 3.6.1 bottle.
syncthing 0.10.2

Closes #33401.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
syncthing: update 0.10.2 bottle.