fix: better return types for Illuminate\Queue\Jobs\Job::getJobId() and Illuminate\Queue\Jobs\DatabaseJob::getJobId() methods (#55138)

#55080

Author: petrknap

src/Illuminate/Queue/Jobs/DatabaseJob.php

@@ -78,7 +78,7 @@ public function attempts()
     /**
      * Get the job identifier.
      *
-     * @return string
+     * @return string|int
      */
     public function getJobId()
     {

src/Illuminate/Queue/Jobs/Job.php

@@ -67,7 +67,7 @@ abstract class Job
     /**
      * Get the job identifier.
      *
-     * @return string
+     * @return string|int|null
      */
     abstract public function getJobId();