v10.21.0

• [10.x] Add broadcastAs function at BroadcastNotificationCreated by @raphaelcangucu in #48136
• [10.x] Fix createOrFirst on transactions by @tonysm in #48144
• [10.x] Improve PendingRequest::pool() return type by @axlon in #48150
• [10.x] Adds start and end string replacement helpers by @joedixon in #48025
• [10.x] Fix flaky test using microtime by @tonysm in #48156
• [10.x] Allow failed job providers to be countable by @timacdonald in #48177
• [10.x] Change the return type of getPublicToken function by @fahamjv in #48173
• [10.x] Fix flakey HttpClientTest test by @joshbonnick in #48166
• [10.x] Give access to job UUID in the job queued event by @timacdonald in #48179
• [10.x] Add serializeAndRestore() to QueueFake andBusFake by @cosmastech in #48131
• Add visibility Support for Scoped Disk Configurations by @okaufmann in #48186
• [10.x] Ensuring Primary Reference on Retry in createOrFirst() by @mpyw in #48161
• [10.x] Make the firstOrCreate methods in relations use createOrFirst behind the scenes by @tonysm in #48192
• [10.x] Enhancing updateOrCreate() to Use firstOrCreate() by @mpyw in #48160
• [10.x] Introduce short-hand "false" syntax for Blade component props by @ryangjchandler in #48084
• [10.x] Fix validation of attributes that depend on previous excluded attribute by @hans-thomas in #48122
• [10.x] Remove unused catch exception variables by @osbre in #48209
• Revert "feature: introduce short hand false syntax for component prop… by @driesvints in #48220
• [10.x] Return from maintenance middleware early if URL is excluded by @axlon in #48218
• [10.x] Array to string conversion error exception by @hans-thomas in #48219
• [10.x] Migrate to laravel/facade-documenter repository by @timacdonald in #48223
• Remove unneeded Return type in Docblock of Illuminate\Database\Eloquent\Builder.php by @FrazerFlanagan in #48228
• [10.x] Fix issues with updated_at by @driesvints in #48230
• [10.x] Use Symfony Response in exception handler by @thomasschiet in #48226
• [10.x] Allow failed jobs to be counted by "connection" and "queue" by @timacdonald in #48216
• [10.x] Add method Str::convertCase by @rmunate in #48224
• [10.x] Make the updateOrCreate methods in relations use firstOrCreate behind the scenes by @mpyw in #48213