Extract paths out of util (#13182)

This PR extracts the definition of the various Zed paths out of `util`
and into a new `paths` crate.

`util` is for generic utils, while these paths are Zed-specific. For
instance, `gpui` depends on `util`, and it shouldn't have knowledge of
these paths, since they are only used by Zed.

Release Notes:

- N/A

crates/node_runtime/Cargo.toml

@@ -24,6 +24,7 @@ async_zip.workspace = true
 futures.workspace = true
 http.workspace = true
 log.workspace = true
+paths.workspace = true
 semver.workspace = true
 serde.workspace = true
 serde_json.workspace = true