Update Python versions: drop 3.8, add 3.13 to CI

.github/workflows/host.yml

@@ -16,11 +16,11 @@ jobs:
       max-parallel: 5
       matrix:
         python-version:
-        - '3.8'
         - '3.9'
         - '3.10'
         - '3.11'
         - '3.12'
+        - '3.13'
 
     name: test (${{ matrix.python-version }})
     steps:

apollo_fpga/__init__.py

@@ -20,6 +20,7 @@
 from .onboard_jtag import *
 
 import importlib.metadata
+import importlib.resources
 __version__ = importlib.metadata.version(__package__)
 
 
@@ -168,11 +169,7 @@ def _init_backend(cls):
             # In Windows, we need to specify the libusb library location to create a backend.
             if platform.system() == "Windows":
                 # Determine the path to libusb-1.0.dll.
-                try:
-                    from importlib_resources import files # <= 3.8
-                except:
-                    from importlib.resources import files # >= 3.9
-                libusb_dll = os.path.join(files("usb1"), "libusb-1.0.dll")
+                libusb_dll = os.path.join(importlib.resources.files("usb1"), "libusb-1.0.dll")
 
                 # Create a backend by explicitly passing the path to libusb_dll.
                 cls.backend = usb.backend.libusb1.get_backend(find_library=lambda x: libusb_dll)

pyproject.toml

@@ -10,7 +10,7 @@ authors = [
 license = { text = "BSD" }
 description = "Python library and host tools for Apollo FPGA debug controllers."
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
     'Programming Language :: Python',
     'Development Status :: 5 - Production/Stable',
@@ -24,7 +24,6 @@ classifiers = [
     'Topic :: Scientific/Engineering',
 ]
 dependencies = [
-    "importlib_resources; python_version<'3.9'",
     "pyusb>1.1.1",
     "pyvcd>=0.2.4",
     "prompt-toolkit>3.0.16",