Unbreak hack to strip " (deleted)" suffix from executable path

Commit 49b88868df (Fix stripping of " (deleted)" from non-UTF8 paths
to fish, 2024-10-12) was wrong because Path::ends_with() considers
entire path components. Fix that.

Refs:
- https://matrix.to/#/!YLTeaulxSDauOOxBoR:matrix.org/$k2IQazfmztFUXrairmIQvx_seS1ZJ7HlFWhmNy479Dg
- https://matrix.to/#/!YLTeaulxSDauOOxBoR:matrix.org/$4pugfHejL9J9L89zuFU6Bfg41UMjA0y79orc3EaBego

(cherry picked from commit 7b59ae0d82)

src/common.rs

@@ -1654,7 +1654,7 @@ pub fn get_executable_path(argv0: impl AsRef<Path>) -> PathBuf {
         // When /proc/self/exe points to a file that was deleted (or overwritten on update!)
         // then linux adds a " (deleted)" suffix.
         // If that's not a valid path, let's remove that awkward suffix.
-        if !path.ends_with(" (deleted)") {
+        if path.as_os_str().as_bytes().ends_with(b" (deleted)") {
             return path;
         }