package: Update testbotsdk to include TX2 support

[acostach]

Change-type: patch Signed-off-by: Alexandru Costache alexandru@balena.io

Connects to:

• https://github.com/balena-io-hardware/testbotsdk/pull/45
• https://github.com/balena-os/balena-jetson/issues/332

[acostach]

A testbot and TX2 DUT are set up in the rig app. Once this is merged, deployed and updated in leviathan it should start running tests on PRs