This commit upgrades the TLS stack to Rustls 0.23
Key changes:
- Dependencies: Updated 'rustls' (v0.23), 'tokio-rustls' (v0.26), and 'actix-web' (v4.12.1).
- Build Fix: Configured 'rustls' to use the 'ring' provider (disabling default 'aws-lc-rs') to ensure ARMv7 compatibility.
- Refactor: Created 'server/src/tls.rs' to handle certificate loading (DRY).
- LDAP: Updated 'ldap_server.rs' to use the new TLS module and Rustls APIs.
- Healthcheck: Updated 'healthcheck.rs' to use Rustls 0.23 types.
By making it a &'static, we can have a single allocation for all the threads/async contexts.
This also normalizes the whitespace from the user input; a trailing \n can cause weird issues with clients