Remove match_args for python3.9

Author: benjeffery

python/tests/tsutil.py

@@ -39,6 +39,8 @@
 import tskit
 import tskit.provenance as provenance
 
+np.random.randint(-127, 127, 22).astype(np.int8)
+
 
 def random_bytes(max_length):
     """

python/tskit/jit/numba.py

@@ -13,11 +13,12 @@
 # Decorator that makes a jited dataclass by removing certain methods
 # that are not compatible with Numba's JIT compilation.
 def jitdataclass(cls):
-    dc_cls = dataclass(cls, eq=False, match_args=False)
+    dc_cls = dataclass(cls, eq=False)
     del dc_cls.__dataclass_params__
     del dc_cls.__dataclass_fields__
     del dc_cls.__repr__
     del dc_cls.__replace__
+    del dc_cls.__match_args__
     return numba.experimental.jitclass(dc_cls)