github-ci: remove debian 10, debian 10 is EOL

Author: jasonish

.github/workflows/tests.yml

@@ -198,30 +198,6 @@ jobs:
       - name: Python 3 integration tests
         run: PYTHONPATH=. python3 ./tests/integration_tests.py
 
-  debian-10:
-    name: Debian 10
-    runs-on: ubuntu-latest
-    container: debian:10
-    steps:
-      - run: apt update
-      - run: |
-          apt -y install \
-            python-pytest \
-            python-yaml \
-            python3-pytest \
-            python3-yaml
-      - uses: actions/checkout@v1
-
-      - name: Python 2 unit tests
-        run: PYTHONPATH=. pytest
-      - name: Python 2 integration tests
-        run: PYTHONPATH=. python2 ./tests/integration_tests.py
-
-      - name: Python 3 unit tests
-        run: PYTHONPATH=. pytest-3
-      - name: Python 3 integration tests
-        run: PYTHONPATH=. python3 ./tests/integration_tests.py
-
   # macos-latest:
   #   name: MacOS Latest
   #   runs-on: macos-latest