Update workflows with new Python versions

.github/workflows/gh-test.yml

@@ -1,13 +1,13 @@
 # This workflow will install Python dependencies, run tests and lint with a single version of Python
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Test
+name: Various Checks and Tests
 
 on:
   push:
-    branches: [ master, dev/jan, experimental ]
+    branches: [ master, experimental ]
   pull_request:
-    branches: [ master, dev/jan, experimental ]
+    branches: [ master, experimental ]
 
 jobs:
   build:
@@ -16,10 +16,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.6
+    - name: Set up Python 3.x
       uses: actions/setup-python@v2
       with:
-        python-version: 3.6
+        python-version:  '>=3.7 <=3.12'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/install-from-pypi.yml

@@ -1,12 +1,12 @@
-name: Test PyPI Installation
+name: Check PyPI Installation
 
 on:
   workflow_dispatch:
 
   push:
-    branches: [ master, dev/jan ]
+    branches: [ master ]
   pull_request:
-    branches: [ master, dev/jan ]
+    branches: [ master ]
 
 jobs:
   build:
@@ -15,10 +15,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.6
+    - name: Set up Python 3.x
       uses: actions/setup-python@v2
       with:
-        python-version: 3.6
+        python-version: '>=3.7 <=3.12'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/publish.yml

@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python
+      - name: Set up Python 3.x
         uses: actions/setup-python@v1
         with:
-          python-version: "3.6"
+          python-version:  '>=3.7 <=3.12'
       - name: Install Poetry
         run: |
           curl -fsS -o get-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py