Update Python & Django version support

[codingjoe]

• Add Python 3.14
• Add Django 6.0
• Add Wagtail 7.2
• Drop Django 5.1 (EoL)

[Copilot]

Pull request overview

This PR attempts to update Python and Django version support by adding Python 3.14 and Django 6.0 while dropping Django 5.1. However, the PR contains critical issues as both Python 3.14 and Django 6.0 have not been officially released yet and are not available for use.

Key Changes:

• Addition of Python 3.14 support in package classifiers and CI matrix
• Addition of Django 6.0 support in package classifiers and CI matrix
• Removal of Django 5.1 from supported versions
• Simplified Django version format in CI workflow (from "4.2.0" to "4.2")

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
pyproject.toml	Added Python 3.14 and Django 6.0 classifiers, removed Django 5.1 classifier
.github/workflows/ci.yml	Added Python 3.14 and Django 6.0 to test matrix, removed Django 5.1, simplified version format

Critical Issues Found:

• Python 3.14 has not been released yet and is not available in GitHub Actions or for production use
• Django 6.0 has not been released yet and is not available on PyPI
• These additions will cause immediate CI failures and prevent the package from being properly tested

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.27%. Comparing base (746ccaa) to head (5d1470c).
⚠️ Report is 120 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (746ccaa) and HEAD (5d1470c). Click for more details.

HEAD has 6 uploads less than BASE

Flag	BASE (746ccaa)	HEAD (5d1470c)
	7	1

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #174      +/-   ##
==========================================
- Coverage   99.69%   93.27%   -6.43%     
==========================================
  Files          21       21              
  Lines         332      342      +10     
==========================================
- Hits          331      319      -12     
- Misses          1       23      +22     

Flag	Coverage Δ
python-3.10	92.98% <ø> (?)
python-3.11	92.98% <ø> (?)
python-3.12	92.98% <ø> (?)
python-3.13	92.98% <ø> (?)
python-3.14	92.98% <ø> (?)

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

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