feat: Add TLS to atuin-server (#1457)

* Add TLS to atuin-server

atuin as a project already includes most of the dependencies necessary
for server-side TLS.  This allows `atuin server start` to use a TLS
certificate when self-hosting in order to avoid the complication of
wrapping it in a TLS-aware proxy server.

Configuration is handled similar to the metrics server with its own
struct and currently accepts only the private key and certificate file
paths.

Starting a TLS server and a TCP server are divergent because the tests
need to bind to an arbitrary port to avoid collisions across tests.  The
API to accomplish this for a TLS server is much more verbose.

* Fix clippy, fmt

* Add TLS section to self-hosting

0 files changed, 0 insertions, 0 deletions