Add telemetry events for loading extensions (#9793)

* Store extensions versions' wasm API version in the database
* Share a common struct for extension API responses between collab and
client
* Add wasm API version and schema version to extension API responses

Release Notes:

- N/A

Co-authored-by: Marshall <marshall@zed.dev>

crates/rpc/Cargo.toml

@@ -20,6 +20,7 @@ test-support = ["collections/test-support", "gpui/test-support"]
 anyhow.workspace = true
 async-tungstenite = "0.16"
 base64.workspace = true
+chrono.workspace = true
 collections.workspace = true
 futures.workspace = true
 gpui = { workspace = true, optional = true }