A lot of things are breaking in 0.23 so instead of having this
be a long process, just rip of the plaster.
Updates #1758
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit sets the Headscale config from env instead of file for
integration tests, the main point is to make sure that when we add per
test config, it properly replaces the config key and not append it or
something similar.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>