media-sharing: Run the go tests as presubmits.
media-sharing: Run the go tests as presubmits.

We have the capacity to break the go-test tests, so we should test for them on presumbit.

Change-Id: I3cb2f36e0ec21155562a19e2e7a10a2de8f665a4

vanadium/go.devtools,vanadium/go.devtools,vanadium/go.devtools