Add back Debian 10 images with Py26 to workflows

Author: molinav

.github/workflows/multiarch.yml

@@ -217,7 +217,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          ["2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
+          ["2.6", "2.6-ucs2", "2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
            "3.2", "3.2-ucs2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
            "3.9", "3.10", "3.11", "3.12"]
       max-parallel: 1

.github/workflows/x64.yml

@@ -217,7 +217,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          ["2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
+          ["2.6", "2.6-ucs2", "2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
            "3.2", "3.2-ucs2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
            "3.9", "3.10", "3.11", "3.12"]
       max-parallel: 1

.github/workflows/x86.yml

@@ -217,7 +217,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          ["2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
+          ["2.6", "2.6-ucs2", "2.7", "2.7-ucs2", "3.1", "3.1-ucs2",
            "3.2", "3.2-ucs2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
            "3.9", "3.10", "3.11", "3.12"]
       max-parallel: 1