Resurrect Python 2.7 tests

It would be nice to know when code stops working and we need
to drop support.

.github/workflows/main.yml

@@ -38,12 +38,12 @@ jobs:
           python test_zdump.py -vv
 
   legacy:
-    name: Older Python Releases
+    name: "Older Python 3 Releases"
     runs-on: ubuntu-20.04
 
     strategy:
       matrix:
-        python-version: ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.5", "3.6", "3.7", "3.8", "3.9", "3.10"]
 
     steps:
       - uses: actions/checkout@v3
@@ -66,3 +66,29 @@ jobs:
         run: |
           cd build/dist/pytz/tests
           python test_docs.py -vv
+
+  antiquity:
+    name: "Python 2.7"
+    runs-on: ubuntu-20.04
+    container:
+      image: python:2.7.18-buster
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install dependencies
+        run: |
+          apt-get update && apt-get install sudo cmake gawk rsync -y
+          sudo apt-get update -qq -y
+          sudo python -m pip install --upgrade pip wheel flake8
+      - name: Build
+        run: |
+          make build
+      - name: Unit Tests
+        run: |
+          cd build/dist/pytz/tests
+          python test_lazy.py -vv
+          python test_tzinfo.py -vv
+      - name: Documentation Tests
+        run: |
+          cd build/dist/pytz/tests
+          python test_docs.py -vv