Release 2025.8.1

See https://docs.goauthentik.io/docs/releases/2025.8#fixed-in-202581

What's Changed

• *: Fix dead doc link (cherry-pick #16288) by @rissson in #16297
• web: fix "Explore integrations" link in Quick actions (cherry-pick #16274) by @GirlBossRush in #16285
• web: Fix hidden textarea required attribute. (cherry-pick #16168) by @GirlBossRush in #16275
• providers/oauth2: fix logout token missing sid, fix wrong sub mode used (cherry-pick #16295) by @rissson in #16299
• lifecycle: set PROMETHEUS_MULTIPROC_DIR as early as possible (cherry-pick #16298) by @rissson in #16302
• web: Fix issue where clicking a list item scrolls container (cherry-pick #16174) by @GirlBossRush in #16278
• web: Improvements to ReCaptcha resizing (cherry-pick #16171) by @GirlBossRush in #16281
• web: Fix form group slots (cherry-pick #16276) by @GirlBossRush in #16277
• web: Username truncation, field alignment. (cherry-pick #16283) by @GirlBossRush in #16284
• website/docs: add link in 2025.8 rel notes to back-channel logout doc (cherry pick #16306) by @tanberry in #16318
• core: use email backend for test_email management command (cherry-pick #16311) by @rissson in #16337
• packages/django-dramatiq-postgres: middleware: fix listening on hosts where ipv6 is not supported (cherry-pick #16308) by @rissson in #16305
• outposts: fix service connection update task arguments (cherry-pick #16312) by @rissson in #16313
• outposts: allow ingress path type configuration (cherry-pick #16339) by @rissson in #16341
• website: Hotfix version 2025.8/website versioning by @GirlBossRush in #16336
• packages/django-dramatiq-postgres: broker: fix various timing issues (cherry-pick #16340) by @rissson in #16342

Full Changelog: version/2025.8.0...version/2025.8.1