Replace rustls-native-certs with rustls-platform-verifier (#24656)

closes https://github.com/zed-industries/zed/issues/19620.

I am not 100% sure on how to test this though. @elithrar: would you mind
giving this branch a shot and seeing if it works for you? I kicked off
bundling for this pull request and you should be able to download a DMG
from the CI artifacts as soon as it's done building.

Release Notes:

- Fixed a bug that caused OS-level CA certificate bundles to not be
respected.

---------

Co-authored-by: Bennet <bennet@zed.dev>
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>

crates/http_client/Cargo.toml

@@ -25,3 +25,5 @@ log.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 url.workspace = true
+rustls.workspace = true
+rustls-platform-verifier.workspace = true