Merge #6770

6770: Update usage string to include code-exploration client. r=lnicola a=derdaele

Support for `code-exploration` client was added #6766 in but the usage string wasn't updated.

Co-authored-by: Jérémy <[email protected]>

Author: bors[bot]

xtask/src/main.rs

@@ -47,7 +47,7 @@ USAGE:
 
 FLAGS:
         --client[=CLIENT] Install only VS Code plugin.
-                          CLIENT is one of 'code', 'code-insiders', 'codium', or 'code-oss'
+                          CLIENT is one of 'code', 'code-exploration', 'code-insiders', 'codium', or 'code-oss'
         --server          Install only the language server
         --mimalloc        Use mimalloc for server
     -h, --help            Prints help information