Add git_update.sh and adjust update/test hooks

app/Actions/BbcodeFormatter.php

@@ -30,6 +30,10 @@ class BbcodeFormatter
 
     private static function build(): array
     {
+        if (app()->environment('testing') && env('BBCODE_FORCE_FAIL')) {
+            throw new \RuntimeException('Unable to initialize BBCode formatter.');
+        }
+
         $configurator = new Configurator();
         $bbcodes = $configurator->plugins->load('BBCodes');
         $bbcodes->addFromRepository('B');