Draft: tests: Attempt to fix LSAN crashes

We get random LSAN crashes in CI which may or may not be related to https://github.com/google/sanitizers/issues/1342

I'm trying to "fix" this by using use_tls=0 in LSAN_OPTIONS and suppressing the new leaks.

Obviously this needs to be reverted at some point.

Signed-off-by: Derek Foreman derek.foreman@collabora.com