Use Python 3.12 base for non-pytest/min coverage checks (#1018)

This PR updates the CI checks to use a Python 3.12 base instead of
Python 3.8 (which reaches EOL in Oct 2024). This will also allow the
pipeline to run against the latest versions of the `css` and `qss`
dependencies as some newer releases have already dropped support for
Python 3.8/3.9 for example.

.github/workflows/ci.yml

@@ -22,10 +22,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -43,10 +43,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -64,10 +64,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -85,10 +85,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -159,10 +159,10 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -180,10 +180,10 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -203,10 +203,10 @@ jobs:
     timeout-minutes: 6
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - uses: actions/cache@v4
         with:
           path: ${{ env.pythonLocation }}
@@ -236,10 +236,10 @@ jobs:
     name: Notebook check for ${{ matrix.type }}
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

.github/workflows/daily-integration-check.yml

@@ -2,24 +2,23 @@ name: Daily Integration Check
 
 on:
   schedule:
-  - cron: "0 14 * * *"  # Daily at 14:00 UTC
-  workflow_dispatch:  # so that we can also run manually, e.g. for testing
-
+    - cron: "0 14 * * *" # Daily at 14:00 UTC
+  workflow_dispatch: # so that we can also run manually, e.g. for testing
 
 jobs:
   daily-integration-check:
     name: Pytest integration check
     env:
-      SUPERSTAQ_API_KEY : ${{ secrets.SUPERSTAQ_API_KEY }}
-      TEST_USER_IBMQ_TOKEN : ${{ secrets.TEST_USER_IBMQ_TOKEN }}
+      SUPERSTAQ_API_KEY: ${{ secrets.SUPERSTAQ_API_KEY }}
+      TEST_USER_IBMQ_TOKEN: ${{ secrets.TEST_USER_IBMQ_TOKEN }}
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
@@ -32,7 +31,7 @@ jobs:
         uses: JasonEtco/create-an-issue@v2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          TEST_USER_IBMQ_TOKEN : ${{ secrets.TEST_USER_IBMQ_TOKEN }}
+          TEST_USER_IBMQ_TOKEN: ${{ secrets.TEST_USER_IBMQ_TOKEN }}
         with:
           filename: .github/integration-check-failure-issue.md
           update_existing: true

.github/workflows/main.yml

@@ -10,10 +10,10 @@ jobs:
     timeout-minutes: 6
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.12
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip