chore: update CodeIgniter to v4.5.6

app/Config/Events.php

app/Config/Format.php

app/Config/Paths.php

app/Controllers/EpisodeAudioController.php

app/Controllers/EpisodeController.php

app/Entities/Location.php

app/Helpers/breadcrumb_helper.php

app/Libraries/Router.php

app/Views/errors/cli/error_exception.php

app/Views/errors/html/error_exception.php

composer.json

composer.lock

modules/Admin/Controllers/AboutController.php

modules/Analytics/AnalyticsTrait.php

modules/Analytics/Helpers/analytics_helper.php

modules/Api/Rest/V1/Controllers/EpisodeController.php

modules/Api/Rest/V1/Controllers/PodcastController.php

modules/Auth/Commands/RolesDoc.php

modules/Auth/Filters/PermissionFilter.php

modules/Fediverse/ActivityRequest.php