Make mypy opt-out instead of opt-in (#33205)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

vllm/config/compilation.py

@@ -570,7 +570,7 @@ class CompilationConfig:
     pass_config: PassConfig = field(default_factory=PassConfig)
     """Custom inductor passes, see PassConfig for more details"""
 
-    max_cudagraph_capture_size: int | None = field(default=None)
+    max_cudagraph_capture_size: int = field(default=None)
     """The maximum cudagraph capture size.
 
     If cudagraph_capture_sizes is specified, this will be set to the largest
@@ -743,6 +743,7 @@ class CompilationConfig:
         "level",
         "mode",
         "cudagraph_mode",
+        "max_cudagraph_capture_size",
         "use_inductor_graph_partition",
         mode="wrap",
     )