Fallback to stdlib json if integer exceeds 64-bit range (#18148)

Fixes the error below:
```python
 File "mypy/main.py", line 102, in main
  File "mypy/main.py", line 186, in run_build
  File "mypy/build.py", line 194, in build
  File "mypy/build.py", line 269, in _build
  File "mypy/build.py", line 2935, in dispatch
  File "mypy/build.py", line 3333, in process_graph
  File "mypy/build.py", line 3460, in process_stale_scc
  File "mypy/build.py", line 2497, in write_cache
  File "mypy/build.py", line 1560, in write_cache
  File "mypy/util.py", line 924, in json_dumps
TypeError: Integer exceeds 64-bit range
```

Related: ijl/orjson#116

Author: q0w

mypy/util.py

@@ -928,11 +928,17 @@ def quote_docstring(docstr: str) -> str:
 def json_dumps(obj: object, debug: bool = False) -> bytes:
     if orjson is not None:
         if debug:
-            return orjson.dumps(obj, option=orjson.OPT_INDENT_2 | orjson.OPT_SORT_KEYS)  # type: ignore[no-any-return]
+            dumps_option = orjson.OPT_INDENT_2 | orjson.OPT_SORT_KEYS
         else:
             # TODO: If we don't sort keys here, testIncrementalInternalScramble fails
             # We should document exactly what is going on there
-            return orjson.dumps(obj, option=orjson.OPT_SORT_KEYS)  # type: ignore[no-any-return]
+            dumps_option = orjson.OPT_SORT_KEYS
+
+        try:
+            return orjson.dumps(obj, option=dumps_option)  # type: ignore[no-any-return]
+        except TypeError as e:
+            if str(e) != "Integer exceeds 64-bit range":
+                raise
 
     if debug:
         return json.dumps(obj, indent=2, sort_keys=True).encode("utf-8")