python314Packages.llm: disable failing tests

pkgs/development/python-modules/llm/default.nix

@@ -6,6 +6,7 @@
   fetchFromGitHub,
   fetchpatch,
   pytestCheckHook,
+  pythonAtLeast,
   pythonOlder,
   replaceVars,
   setuptools,
@@ -249,6 +250,13 @@ let
       # TypeError: CliRunner.__init__() got an unexpected keyword argument 'mix_stderr
       # https://github.com/simonw/llm/issues/1293
       "test_embed_multi_files_encoding"
+    ]
+    ++ lib.optionals (pythonAtLeast "3.14") [
+      # Index out of range
+      # https://github.com/simonw/llm/issues/1335
+      "test_logs_fragments"
+      "test_expand_fragment_json"
+      "test_expand_fragment_markdown"
     ];
 
     pythonImportsCheck = [ "llm" ];