Add support for Python 3.13 (#145)

Python core removed modules `aifc` and `sunau` in 3.13 as part of
PEP-594 https://peps.python.org/pep-0594/
This change adds `standard-aifc` and `standard-sunau` as dependencies
for python 3.13 and above. These are forks of the modules that had
previously been in the python core.

Also updates the test config to run against python 3.12 and python 3.13

Fixes #144

Author: snejus

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.9", "3.10", "3.11"]
+        python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - name: Install Python tools

poetry.lock

@@ -17,6 +17,10 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "License :: OSI Approved :: MIT License",
 ]
+dependencies = [
+    "standard-aifc; python_version >= '3.13'",
+    "standard-sunau; python_version >= '3.13'",
+]
 
 [project.urls]
 Homepage = "https://github.com/beetbox/audioread"