fix CI / CD builds missing python 2

Python 2 support was droped by Github's CI/CD images.
Switch to python:2.7.18-buster image to address the issue on this branch

In v16 we can ensure we are using python 3

Author: jkasten2

.github/workflows/cd.yml

@@ -5,7 +5,9 @@ on:
 
 jobs:
   test_build_deploy:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
+    container:
+      image: python:2.7.18-buster
 
     strategy:
       matrix:
@@ -17,9 +19,6 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
-      - uses: actions/setup-python@v4
-        with:
-          python-version: '2.7'
       - name: "[Setup] Install dependencies"
         run: yarn
       - name: "[Test] Run all tests"

.github/workflows/ci.yml

@@ -6,7 +6,9 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
+    container:
+      image: python:2.7.18-buster
 
     strategy:
       matrix:
@@ -18,10 +20,6 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
-      - name: Use Python 2.7
-        uses: actions/setup-python@v4
-        with:
-          python-version: '2.7'
       - name: "[Setup] Install dependencies"
         run: yarn
       - name: "[Test] Run linters"