feat: Add Flare support

- Add new log channel "flare" and update "stack" channel to use it
- Introduce placeholders for log messages in several channels
- Add processors to "papertrail" and "stderr" channels
- Add `spatie/laravel-ignition` package to composer requirements
- Change `$dontReport` variable to `$dontFlash` in exception handler
- Add `FLARE_KEY` and `BRIDGY_MASTODON_TOKEN` to `.env.github` and `.env.example` files

composer.json

@@ -30,6 +30,7 @@
         "league/flysystem-aws-s3-v3": "^3.0",
         "mf2/mf2": "~0.3",
         "spatie/commonmark-highlighter": "^3.0",
+        "spatie/laravel-ignition": "^2.1",
         "symfony/html-sanitizer": "^6.1"
     },
     "require-dev": {
@@ -44,7 +45,6 @@
         "nunomaduro/collision": "^7.0",
         "phpunit/php-code-coverage": "^10.0",
         "phpunit/phpunit": "^10.0",
-        "spatie/laravel-ignition": "^2.0",
         "spatie/laravel-ray": "^1.12",
         "vimeo/psalm": "^5.0"
     },