Throwaway TLS fixtures for `appgate::tls` unit tests.

Generated by `openssl req -x509 -nodes` with SANs `localhost`/`127.0.0.1` only.
They are **not** any node's identity: a real node's pair lives at
`/etc/archipelago/ssl/` and is created by `scripts/setup-node-ca.sh`. Nothing
here is trusted by anything, and `other.key` exists purely to prove a
mismatched cert/key pair is rejected rather than silently served.

Regenerate with the command in this directory's git history if they ever
expire — `-days 36500` means that should not happen.