I am trying to execute github action script
this is the script
name: My First GitHub Actions

on: [push]

jobs:
build:
runs-on: self-hosted

strategy:
  matrix:
    python-version: [3.8, 3.9]

steps:
- uses: actions/checkout@v3
- name: Set up Python
  uses: actions/setup-python@v3
  with:
    python-version: ${{ matrix.python-version }}

- name: Install dependencies
  run: |
    python -m pip install --upgrade pip
    pip install pytest

- name: Run tests
  run: |
    cd src
    python -m pytest addition.py

but getting this error
ubuntu@ip-172-31-16-175:~/actions-runner$ ./run.sh

√ Connected to GitHub

Current runner version: ‘2.316.1’
2024-05-18 18:20:12Z: Listening for Jobs
2024-05-18 18:20:15Z: Running job: build (3.8)
2024-05-18 18:20:23Z: Job build (3.8) completed with result: Failed
2024-05-18 18:20:24Z: Running job: build (3.9)
2024-05-18 18:20:28Z: Job build (3.9) completed with result: Canceled

I have checked the logs , logs are showing that this is the error , tried to change the python version but still getting the same error
Version 3.8 was not found in the local cache
Error: Version 3.8 with arch x64 not found
The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

can anyone please help me, how to resolve these error?

tried different python versions.