add python 3.8 to supported versions in pyproject.toml and to CPU unit tests

.github/workflows/unit_tests.yml

@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ "3.9", "3.10", "3.11" ]
+        python-version: ["3.8", "3.9", "3.10", "3.11" ]
     timeout-minutes: 30
 
     steps:

pyproject.toml

@@ -16,7 +16,7 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.8"
 license = { "text" = "MIT" }
 dependencies = [
     "accelerate>=0.21.0",