build(deps): bump django-environ from 0.12.0 to 0.13.0 in /backend

[dependabot]

Bumps django-environ from 0.12.0 to 0.13.0.

Release notes

Sourced from django-environ's releases.

v0.13.0

v0.13.0_ - 18-February-2026

Added +++++

• Added optional warnings when defaults are used [#582](https://github.com/joke2k/django-environ/issues/582) <https://github.com/joke2k/django-environ/pull/582>_.
• Added choices argument support for value validation in Env.str(...) [#555](https://github.com/joke2k/django-environ/issues/555) <https://github.com/joke2k/django-environ/pull/555>_.
• Added Valkey support via valkey:// and valkeys:// cache URL schemes [#554](https://github.com/joke2k/django-environ/issues/554) <https://github.com/joke2k/django-environ/pull/554>_.
• Added support for rediss:// scheme in channels URL parsing [#573](https://github.com/joke2k/django-environ/issues/573) <https://github.com/joke2k/django-environ/pull/573>_.
• Added django-prometheus database backend aliases to DB URL parsing schemes [#559](https://github.com/joke2k/django-environ/issues/559) <https://github.com/joke2k/django-environ/pull/559>_.

Changed +++++++

• Declared support for Python 3.14 [#580](https://github.com/joke2k/django-environ/issues/580) <https://github.com/joke2k/django-environ/pull/580>_.
• Declared support for Django 5.2 and Django 6.0 [#578](https://github.com/joke2k/django-environ/issues/578) <https://github.com/joke2k/django-environ/pull/578>_.

Fixed +++++

• Improved type hint coverage and related lint issues [#546](https://github.com/joke2k/django-environ/issues/546) <https://github.com/joke2k/django-environ/pull/546>_.
• Fixed typos in the FAQ page [#445](https://github.com/joke2k/django-environ/issues/445) <https://github.com/joke2k/django-environ/pull/445>_.

v0.12.1

Changelog

Fixed

• Fixed PostgreSQL cluster URL parsing with bracketed IPv6 hosts in recent Python versions, preventing failures in runtime URL parsing and related regression tests [#574](https://github.com/joke2k/django-environ/issues/574) <https://github.com/joke2k/django-environ/issues/574>_.
• Fixed debug logging in Env.get_value() to avoid evaluating lazy default objects when DEBUG logging is enabled [#571](https://github.com/joke2k/django-environ/issues/571) <https://github.com/joke2k/django-environ/issues/571>_.

Changelog

Sourced from django-environ's changelog.

v0.13.0_ - 18-February-2026

Added +++++

• Added optional warnings when defaults are used [#582](https://github.com/joke2k/django-environ/issues/582) <https://github.com/joke2k/django-environ/pull/582>_.
• Added choices argument support for value validation in Env.str(...) [#555](https://github.com/joke2k/django-environ/issues/555) <https://github.com/joke2k/django-environ/pull/555>_.
• Added Valkey support via valkey:// and valkeys:// cache URL schemes [#554](https://github.com/joke2k/django-environ/issues/554) <https://github.com/joke2k/django-environ/pull/554>_.
• Added support for rediss:// scheme in channels URL parsing [#573](https://github.com/joke2k/django-environ/issues/573) <https://github.com/joke2k/django-environ/pull/573>_.
• Added django-prometheus database backend aliases to DB URL parsing schemes [#559](https://github.com/joke2k/django-environ/issues/559) <https://github.com/joke2k/django-environ/pull/559>_.

Changed +++++++

• Declared support for Python 3.14 [#580](https://github.com/joke2k/django-environ/issues/580) <https://github.com/joke2k/django-environ/pull/581>_.
• Declared support for Django 5.2 and Django 6.0 [#578](https://github.com/joke2k/django-environ/issues/578) <https://github.com/joke2k/django-environ/pull/578>_.

Fixed +++++

• Improved type hint coverage and related lint issues [#546](https://github.com/joke2k/django-environ/issues/546) <https://github.com/joke2k/django-environ/pull/546>_.
• Fixed typos in the FAQ page [#445](https://github.com/joke2k/django-environ/issues/445) <https://github.com/joke2k/django-environ/pull/445>_.

v0.12.1_ - 13-February-2026

Fixed +++++

• Fixed PostgreSQL cluster URL parsing with bracketed IPv6 hosts in recent Python versions, preventing failures in runtime URL parsing and related regression tests [#574](https://github.com/joke2k/django-environ/issues/574) <https://github.com/joke2k/django-environ/issues/574>_.
• Fixed debug logging in Env.get_value() to avoid evaluating lazy default objects when DEBUG logging is enabled [#571](https://github.com/joke2k/django-environ/issues/571) <https://github.com/joke2k/django-environ/issues/571>_.

Commits

• 00746d0 docs: add Django 5.2 and 6.0 support to README
• d1f1159 Release 0.13.0
• d82e361 Add optional warnings when defaults are used (#582)
• a78f7c8 Fixed some typos in the FAQ page (#445)
• 24b299e Feature/add choice parameter and raise an exception if fetched value is not w...
• c441413 Add django-prometheus database backends to DB_SCHEMES (#559)
• 98a0aad Fix lint issues in environ type hints
• f4e77e4 feat(cache): add valkey and valkeys as allowed schemes (#554)
• dd4d308 Add type hints (#546)
• 3137c4f Support lower case options for Django Redis cache backend (#550)
• Additional commits viewable in compare view

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