refactor(deps): define linkerd2-proxy-api using table (linkerd#3473)

this is a small cosmetic tweak to the cargo workspace manifest.

this defines the proxy api as a toml table, to help give us a more
natural place to hang the (inert) example of a git dependency used in
development.

Signed-off-by: katelyn martin <[email protected]>

Author: cratelyn

Cargo.toml

@@ -102,13 +102,16 @@ h2 = { version = "0.3" }
 http = { version = "0.2" }
 http-body = { version = "0.4" }
 hyper = { version = "0.14", default-features = false }
-linkerd2-proxy-api = "0.15.0"
 prost = { version = "0.12" }
 prost-types = { version = "0.12" }
 tokio-rustls = { version = "0.26", default-features = false, features = ["ring", "logging"] }
 tonic = { version = "0.10", default-features = false }
 tonic-build = { version = "0.10", default-features = false }
-# linkerd2-proxy-api = { git = "https://github.com/linkerd/linkerd2-proxy-api.git", branch = "main" }
+
+[workspace.dependencies.linkerd2-proxy-api]
+version = "0.15.0"
+# git = "https://github.com/linkerd/linkerd2-proxy-api.git"
+# branch = "main"
 
 # NB: hyperium/hyper#3796 backports the server connection builder's
 # `max_pending_accept_reset_streams()` method. once released, we can depend on