Add dependency from vss_os.gpr

(cherry picked from commit 163e295)

Author: godunko

gnat/lsp_server.gpr

@@ -1,5 +1,5 @@
 --
---  Copyright (C) 2018-2024, AdaCore
+--  Copyright (C) 2018-2025, AdaCore
 --
 --  SPDX-License-Identifier: Apache-2.0
 --
@@ -12,6 +12,7 @@ with "ada_libfswatch.gpr";
 with "libgnatdoc.gpr";
 with "spawn.gpr";
 with "gnatformat.gpr";
+with "vss_os.gpr";
 with "xdiff.gpr";
 
 with "lsp_3_17";

gnat/tester.gpr

@@ -1,7 +1,7 @@
 ------------------------------------------------------------------------------
 --                         Language Server Protocol                         --
 --                                                                          --
---                        Copyright (C) 2018, AdaCore                       --
+--                     Copyright (C) 2018-2025, AdaCore                     --
 --                                                                          --
 -- This is free software;  you can redistribute it  and/or modify it  under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -17,6 +17,7 @@
 
 with "lsp_client";
 with "gnatcoll";
+with "vss_os.gpr";
 
 project Tester is