Centralise Python version specification in GitHub Actions

.github/workflows/coverage_runner.yml

@@ -30,14 +30,19 @@ jobs:
           member-name: ${{ github.event.pull_request.head.repo.owner.login }}
           token: ${{ secrets.PAT }}
 
+  python-versions:
+    uses: ./.github/workflows/get-python-versions.yml
+
   run-tests:
     runs-on: ${{ matrix.os }}
-    needs: [check_for_membership]
+    needs: [check_for_membership, python-versions]
     if: github.event_name == 'push' || needs.check_for_membership.outputs.check-result == 'true' || github.event_name == 'workflow_dispatch'
     name: Run tests with Python ${{ matrix.python-version }} on ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [ '3.8', '3.12' ]
+        python-version:
+          - ${{ needs.python-versions.outputs.earliest-python-version }}
+          - ${{ needs.python-versions.outputs.latest-python-version }}
         os: [ ubuntu-latest, windows-latest ]
       fail-fast: false
 
@@ -81,20 +86,20 @@ jobs:
         run: python run_tests.py
 
       - name: Publish results to Codecov for PR coming from hazelcast organization
-        if: ${{ matrix.python-version == '3.12' && matrix.os == 'ubuntu-latest' &&  github.event_name == 'pull_request_target' }}
+        if: ${{ matrix.python-version == needs.python-versions.outputs.latest-python-version && matrix.os == 'ubuntu-latest' &&  github.event_name == 'pull_request_target' }}
         uses: codecov/codecov-action@v1
         with:
           files: ./coverage.xml
           override_pr: ${{ github.event.pull_request.number }}
 
       - name: Publish results to Codecov for Push
-        if: ${{ matrix.python-version == '3.12' && matrix.os == 'ubuntu-latest' &&  github.event_name == 'push' }}
+        if: ${{ matrix.python-version == needs.python-versions.outputs.latest-python-version && matrix.os == 'ubuntu-latest' &&  github.event_name == 'push' }}
         uses: codecov/codecov-action@v1
         with:
           files: ./coverage.xml
 
       - name: Publish result to Codecov for PR coming from community
-        if: ${{ matrix.python-version == '3.12' && matrix.os == 'ubuntu-latest' && github.event_name == 'workflow_dispatch' }}
+        if: ${{ matrix.python-version == needs.python-versions.outputs.latest-python-version && matrix.os == 'ubuntu-latest' && github.event_name == 'workflow_dispatch' }}
         uses: codecov/codecov-action@v1
         with:
           files: ./coverage.xml

.github/workflows/get-python-versions.yml

@@ -0,0 +1,28 @@
+name: Get Python versions
+
+on:
+  workflow_call:
+    outputs:
+      python-versions:
+        value: ${{ jobs.get-python-versions.outputs.python-versions }}
+      earliest-python-version:
+        value: ${{ jobs.get-python-versions.outputs.earliest-python-version }}
+      latest-python-version:
+        value: ${{ jobs.get-python-versions.outputs.latest-python-version }}
+
+jobs:
+  get-python-versions:
+    runs-on: ubuntu-latest
+    outputs:
+      python-versions: ${{ steps.extract-versions.outputs.python-versions }}
+      earliest-python-version: ${{ steps.extract-versions.outputs.earliest-python-version }}
+      latest-python-version: ${{ steps.extract-versions.outputs.latest-python-version }}
+    steps:
+      - id: extract-versions
+        run: |
+          python_versions='[ "3.8", "3.9", "3.10", "3.11", "3.12" ]'
+
+          echo "python-versions=${python_versions}" >> $GITHUB_OUTPUT
+          echo "earliest-python-version=$(echo "${python_versions}" | jq --raw-output '.[0]')" >> $GITHUB_OUTPUT
+          echo "latest-python-version=$(echo "${python_versions}" | jq --raw-output '.[-1]')" >> $GITHUB_OUTPUT
+      - run: exit 0

.github/workflows/linter_docs_mypy.yaml

@@ -9,14 +9,18 @@ on:
       - master
       - '[45].*.z'
 jobs:
+  python-versions:
+    uses: ./.github/workflows/get-python-versions.yml
+
   run-linter:
     runs-on: ubuntu-latest
+    needs: python-versions
     name: Run black to check the code style
     steps:
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: ${{ needs.python-versions.outputs.latest-python-version }}
 
       - name: Checkout to code
         uses: actions/checkout@v4
@@ -31,12 +35,13 @@ jobs:
 
   generate_docs:
     runs-on: ubuntu-latest
+    needs: python-versions
     name: Generate documentation
     steps:
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: ${{ needs.python-versions.outputs.latest-python-version }}
 
       - name: Checkout to code
         uses: actions/checkout@v4
@@ -52,12 +57,13 @@ jobs:
 
   run-mypy:
     runs-on: ubuntu-latest
+    needs: python-versions
     name: Run mypy to check type annotations
     steps:
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: ${{ needs.python-versions.outputs.latest-python-version }}
 
       - name: Checkout to code
         uses: actions/checkout@v4

.github/workflows/nightly_runner.yml

@@ -4,16 +4,17 @@ on:
   schedule:
     - cron: '0 2 * * *'
 jobs:
+  python-versions:
+    uses: ./.github/workflows/get-python-versions.yml
+
   run-tests:
+    needs: python-versions
     runs-on: ${{ matrix.os }}
     name: Run tests with Python ${{ matrix.python-version }} on ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [ '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ${{ fromJSON(needs.python-versions.outputs.python-versions) }}
         os: [ ubuntu-latest, windows-latest ]
-        exclude:
-          - os: windows-latest
-            python-version: pypy-3.9
       fail-fast: false
     steps:
       - name: Setup Python