chore: bump tonic to 0.13 and etcd-client to 0.16

[BugenZhao]

Note that the latest version of tonic is actually 0.14. However, a large amount of crates in the ecosystem are still currently on 0.13. It's still worthwhile to bump to 0.13 first before moving on.

[Copilot]

Pull request overview

This PR bumps tonic from version 0.12 to 0.13 and etcd-client from version 0.14 to 0.16. The update aligns the simulator with the current ecosystem, as noted in the PR description, many crates are still on tonic 0.13 despite 0.14 being available.

Changes:

• Updated tonic and tonic-build dependencies from 0.12 to 0.13
• Updated etcd-client dependency from 0.14 to 0.16
• Refactored TLS feature flags to match tonic 0.13's granular feature set (tls-native-roots, tls-webpki-roots, tls-ring, tls-aws-lc)
• Added new API methods to Server and Endpoint to maintain compatibility with tonic 0.13

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
madsim-tonic/Cargo.toml	Version bump to 0.6.0+0.13, updated tonic to 0.13, tower to 0.5, added deflate feature, refactored TLS features
madsim-tonic-build/Cargo.toml	Version bump to 0.6.0+0.13, updated tonic-build to 0.13
madsim-etcd-client/Cargo.toml	Version bump to 0.7.0+0.16.0, updated etcd-client to 0.16 and tonic to 0.13
madsim-tonic/src/transport/server.rs	Updated TLS cfg conditions, added add_optional_service, max_connection_age, http2_max_header_list_size, and trace_fn methods
madsim-tonic/src/transport/channel.rs	Updated TLS cfg conditions, added buffer_size, connect_lazy variants, tls_config, http2_max_header_list_size, executor, local_address, uri, and getter methods
madsim-tonic/src/sim.rs	Reorganized async_trait exports for better clarity and added to codegen module
CHANGELOG.md	Added release notes for tonic 0.6.0 and etcd-client 0.7.0

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[BugenZhao]

May still directly bump to 0.14 #256