ci:: drop EOL'ed Pythin versions, upgrade runner

Author: goldmann

.github/workflows/squash.yml

@@ -10,11 +10,11 @@ on:
 
 jobs:
   build-docker-24:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13.0-rc.1']
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -35,11 +35,11 @@ jobs:
           echo "Running tests for Python version  $PV ( ${PV/./} )"
           make test-py"${PV/./}"
   build-docker-25:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13.0-rc.1']
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -65,11 +65,11 @@ jobs:
           echo "Running tests for Python version  $PV ( ${PV/./} )"
           make test-py"${PV/./}"
   build-podman-3:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13.0-rc.1']
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}