feat: match django-cms core test matrix

[vinitkumar]

Upgrade Python CI Test Matrix

This PR updates the CI/CD test matrix to align with django-cms core testing standards and support the latest Python and Django versions.

Changes

Python Version Support:

• Drop Python 3.9 support
• Add Python 3.14 support
• Test matrix now covers Python 3.10-3.14

Django Version Support:

• Add Django 6.0 with CMS 5.0 to test matrix

Test Matrix Exclusions:

• Python 3.14 only compatible with Django 5.2+ (excluded from Django 4.2, 5.0, and 5.1)
• Python 3.10 and 3.11 excluded from Django 6.0 (end of support)
• Python 3.12 and 3.13 excluded from Django 4.2 with CMS 3.11

CI Improvements:

• Enable pip caching in setup-python action
• Switch from pip install to uv pip install for faster dependency resolution
• Upgrade pip and uv before installing dependencies

These changes ensure the package is tested against all supported Python and Django version combinations while maintaining compatibility with the django-cms ecosystem.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the GitHub Actions workflow to align the CI test matrix with the Django-CMS core compatibility matrix, adds pip caching to speed up runs, and modernizes the dependency installation step for consistent, reproducible installs.

Class diagram for updated CI workflow steps

classDiagram
  class SetupPythonStep {
    +python-version
    +cache
  }
  class InstallDependenciesStep {
    +system-packages
    +upgrade-pip
    +install-uv
    +requirements-file
  }
  class RunCoverageStep {
    +pytest
    +coverage
  }

  SetupPythonStep <--> InstallDependenciesStep
  InstallDependenciesStep <--> RunCoverageStep

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Flow diagram for modernized dependency installation in CI workflow

flowchart TD
  A["Install system dependencies"] --> B["Upgrade pip and install uv"]
  B --> C["Install Python dependencies with uv"]
  C --> D["Run tests with coverage"]

Loading

File-Level Changes

Change	Details	Files
Align GitHub Actions test matrix to match Django CMS core compatibility	Bump Python matrix from 3.10–3.13 to 3.10–3.14, dropping 3.9 Add dj60_cms50.txt to requirements-file list Restructure exclude section for incompatible Python/Django-CMS combinations Annotate compatibility constraints with inline comments	.github/workflows/codecov.yml
Enable pip caching in setup-python step	Add cache: 'pip' to actions/setup-python invocation	.github/workflows/codecov.yml
Improve dependency installation process for reproducibility	Switch to python -m pip to upgrade pip and install uv Use uv pip install --system for installing test requirements Keep OS-level libcairo2 and python3-dev installation	.github/workflows/codecov.yml

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location> `.github/workflows/codecov.yml:59-61` </location>
<code_context>
       uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install dependencies
       run: |
</code_context>

<issue_to_address>
**suggestion:** Enabling pip cache may not benefit 'uv' installs.

Because 'uv' is used for installation, pip cache may be redundant or misleading if 'uv' does not interact with it.

```suggestion
      with:
        python-version: ${{ matrix.python-version }}
```
</issue_to_address>

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.13%. Comparing base (8eb0431) to head (37767af).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #320      +/-   ##
==========================================
- Coverage   89.13%   89.13%   -0.01%     
==========================================
  Files         124      124              
  Lines        3387     3386       -1     
  Branches      288      288              
==========================================
- Hits         3019     3018       -1     
  Misses        252      252              
  Partials      116      116              

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[fsbraun]

Thanks, @vinitkumar !