gpui: Update dependency package names (#40143)

This moves some of the changes made in
https://github.com/zed-industries/zed/pull/39543 to the `publish_gpui`
script.

This PR also updates that script to use `gpui_` instead of `zed-` (where
possible)

Release Notes:

- N/A

crates/util/src/paths.rs

@@ -558,7 +558,7 @@ impl PathWithPosition {
     /// # Examples
     ///
     /// ```
-    /// # use zed_util::paths::PathWithPosition;
+    /// # use util::paths::PathWithPosition;
     /// # use std::path::PathBuf;
     /// assert_eq!(PathWithPosition::parse_str("test_file"), PathWithPosition {
     ///     path: PathBuf::from("test_file"),
@@ -589,7 +589,7 @@ impl PathWithPosition {
     ///
     /// # Expected parsing results when encounter ill-formatted inputs.
     /// ```
-    /// # use zed_util::paths::PathWithPosition;
+    /// # use util::paths::PathWithPosition;
     /// # use std::path::PathBuf;
     /// assert_eq!(PathWithPosition::parse_str("test_file.rs:a"), PathWithPosition {
     ///     path: PathBuf::from("test_file.rs:a"),

crates/util/src/util.rs

@@ -923,7 +923,7 @@ impl PartialOrd for NumericPrefixWithSuffix<'_> {
 /// # Examples
 ///
 /// ```
-/// use zed_util::capitalize;
+/// use util::capitalize;
 ///
 /// assert_eq!(capitalize("hello"), "Hello");
 /// assert_eq!(capitalize("WORLD"), "WORLD");