Update stale snaphshot in test_tooltip_std

Author: Xanewok

tests/fixtures/hover/save_data/test_tooltip_std.rs.0008_027.json

@@ -8,9 +8,9 @@
     "Ok": [
       {
         "language": "rust",
-        "value": "pub const fn new() -> Vec<T>"
+        "value": "pub const fn new() -> Self"
       },
       "Constructs a new, empty `Vec<T>`.\n\nThe vector will not allocate until elements are pushed onto it.\n\n# Examples\n\n```rust\nlet mut vec: Vec<i32> = Vec::new();\n```"
     ]
   }
-}
+}