fix: make the boehm patch content addressed to avoid rebuilds

flake.lock

@@ -36,11 +36,11 @@
     "lix": {
       "flake": false,
       "locked": {
-        "lastModified": 1709967830,
-        "narHash": "sha256-4AwZcUa6crNSSbsIVr7dMlk851ElnAN5BDi4NH6UEKc=",
+        "lastModified": 1710623569,
+        "narHash": "sha256-AUvlDCtq8ITFVHhy2SOboKSDC829LPciA/AAFD6zIyo=",
         "ref": "refs/heads/main",
-        "rev": "896e525681bbf696c330af4e51c5e161d3818350",
-        "revCount": 15092,
+        "rev": "11f35afa6f7933d1640e55473a8c7a153bf89b14",
+        "revCount": 15181,
         "type": "git",
         "url": "ssh://git@git.lix.systems/lix-project/lix.git"
       },

overlay.nix

@@ -10,7 +10,7 @@ let
       (prev.path + "/pkgs/tools/package-management/nix/patches/boehmgc-coroutine-sp-fallback.patch")
 
       # https://github.com/ivmai/bdwgc/pull/586
-      (lix + "/boehmgc-traceable_allocator-public.diff")
+      (builtins.path { path = lix + "/boehmgc-traceable_allocator-public.diff"; name = "boehmgc-traceable_allocator-public.patch"; })
     ];
   })
   );