[FIX Pytest] Resolve 'importlib' issue (#78)

This commit resolves issue, that occurs on main 'pytest run'.
```
    _triton_C_dir = importlib.resources.files(triton._C).joinpath("")
E   AttributeError: module 'importlib' has no attribute 'resources'
```

third_party/cpu/backend/driver.py

@@ -1,6 +1,7 @@
 import os
 import hashlib
 import importlib
+import importlib.resources
 import tempfile
 
 import triton._C