Fix some formatting issues in Cargo.toml files (#7127)

This PR fixes some formatting issues in some of the `Cargo.toml` files.

I tried to fix most of these in #7126, but there were a few that I
missed.

Release Notes:

- N/A

crates/semantic_index/Cargo.toml

@@ -48,7 +48,7 @@ ctor.workspace = true
 env_logger.workspace = true
 gpui = { path = "../gpui", features = ["test-support"] }
 language = { path = "../language", features = ["test-support"] }
-node_runtime = { path = "../node_runtime"}
+node_runtime = { path = "../node_runtime" }
 pretty_assertions.workspace = true
 project = { path = "../project", features = ["test-support"] }
 rand.workspace = true