Add support for Fleet editor in ResolvesDumpSource

[Rakib01]

Adds support for JetBrains Fleet editor in the ResolvesDumpSource.

[Rakib01]

• Add support for Fleet editor in ResolvesDumpSource
• Fix PHPStan undefined variable errors in FailoverQueue

PHPStan was reporting "Variable $e might not be defined" in FailoverQueue. This occurred
because the exception variable was only set within the catch block,
creating a code path where it might be undefined when thrown.

Resolved by:

• Renaming $e to $lastException for clarity
• Initializing $lastException to null before the loop
• Using the null coalescing operator to throw either the last exception
  or a RuntimeException

[taylorotwell]

This is the last one I'm doing for a while 😅

[Rakib01]

Haha, totally understand! Thanks for merging this one 😊

[ahmad-cit22]

• Renaming $e to $lastException for clarity
• Initializing $lastException to null before the loop
• Using the null coalescing operator to throw either the last exception
  or a RuntimeException

Liked this part of your PR 👏 replacing the redundant throw of $e; with predefined $lastException..this makes the failover logic much cleaner and safer. Keep it up bro!