update(deps): update dependency django-bootstrap5 to v26.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
django-bootstrap5 (changelog)	==26.2 → ==26.3

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Release Notes

zostera/django-bootstrap5 (django-bootstrap5)

v26.3

Compare Source

• Drop support for Django 4.2 (EOL).
• Add support for Django 6.1.
• Recognize month and datetime-local input-type widget subclasses as form-control widgets, enabling addons and floating labels for them (#​309, #​678).
• Breaking: Rewrite radio_select.html to forward each option's own attrs (fixing custom attrs like data-total from a custom create_option() being silently dropped on RadioSelect/CheckboxSelectMultiple, #​300) and to stop leaking disabled/required/form/an always-empty class="" onto the non-form-control wrapper <div> (#​806). Individual radio/checkbox inputs now correctly get required/disabled, matching Django's own default widget rendering, instead of only the wrapper having them.
• Fix server_side_validation not propagating from bootstrap_form/bootstrap_formset to field renderers (#​612).
• Fix placeholder being set on color and range inputs (#​832).
• Fix bugs in url_replace_param, jinja2 helpers, and BaseRenderer.render; add AGENTS.md (#​830).
• Add label argument to bootstrap_field to override a field's label text without touching the form definition — works with horizontal/floating layout and as the default placeholder (#​635).
• Add label_class setting so a default label CSS class can be set globally (#​260).
• Support addon_before/addon_after on Select widgets, excluding SelectMultiple and RadioSelect (#​613).
• Add layout setting to set a default layout for forms and fields (#​190, #​531, thanks @​blag).
• Update default Bootstrap to 5.3.8.
• Add input_class argument to bootstrap_field (#​525, #​535, thanks @​frolenkov-nikita).
• Warn when layout="floating" is used with addon_before or addon_after (#​833).
• Add a maintenance-round section and release-note ordering convention to MAINTAINING.md.
• Add tests for django.contrib.gis form field rendering.
• Add a 15-minute timeout-minutes to every CI job.
• Fix just build: ignore the transient pyproject.toml.orig in check-manifest.
• Add typos spell checking to just lint.
• Add MAINTAINING.md (version-support policy, release process); add scope statement and PR-review checklist to CONTRIBUTING.md.
• Fix typos in CHANGELOG.md and docs/settings.rst.
• Fix size docstrings for bootstrap_field/bootstrap_form and bootstrap_pagination — the documented values ('small'/'medium'/'large') don't exist; the accepted values are 'sm'/'md'/'lg' (#​777).

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