snapshot tool throws exception on load action if there are snapshot files from removed plan

[ivanmarchenko83]

To reproduce do this:

1. Create new snapshot plan configuration with name daily-v8 (assuming you already had daily with generated snapshots)
2. Generate a few snapshots for new plan
3. Remove daily-v8 plan configuration
4. Try to load snapshot fir the pan which left (i.e. daily) and see the error:

Unexpected data found.
Trailing data {"exception":"[object] (Carbon\\Exceptions\\InvalidFormatException(code: 0): Unexpected data found.
Unexpected data found.
Trailing data at /app/vendor/nesbot/carbon/src/Carbon/Traits/Creator.php:690)

here is a stack trace:

[stacktrace]
#0 /app/vendor/nesbot/carbon/src/Carbon/Traits/Creator.php(713): Carbon\\Carbon::rawCreateFromFormat()
#1 /app/vendor/ziffmedia/laravel-mysql-snapshots/src/SnapshotPlan.php(286): Carbon\\Carbon::createFromFormat()
#2 /app/vendor/ziffmedia/laravel-mysql-snapshots/src/SnapshotPlan.php(291): ZiffMedia\\LaravelMysqlSnapshots\\SnapshotPlan->matchFileAndDate()
#3 /app/vendor/ziffmedia/laravel-mysql-snapshots/src/SnapshotPlan.php(84): ZiffMedia\\LaravelMysqlSnapshots\\SnapshotPlan->accept()
#4 /app/vendor/ziffmedia/laravel-mysql-snapshots/src/Commands/LoadCommand.php(26): ZiffMedia\\LaravelMysqlSnapshots\\SnapshotPlan::all()
#5 /app/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): ZiffMedia\\LaravelMysqlSnapshots\\Commands\\LoadCommand->handle()
#6 /app/vendor/laravel/framework/src/Illuminate/Container/Util.php(41): Illuminate\\Container\\BoundMethod::Illuminate\\Container\\{closure}()
#7 /app/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\\Container\\Util::unwrapIfClosure()
#8 /app/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(35): Illuminate\\Container\\BoundMethod::callBoundMethod()
#9 /app/vendor/laravel/framework/src/Illuminate/Container/Container.php(661): Illuminate\\Container\\BoundMethod::call()
#10 /app/vendor/laravel/framework/src/Illuminate/Console/Command.php(183): Illuminate\\Container\\Container->call()
#11 /app/vendor/symfony/console/Command/Command.php(326): Illuminate\\Console\\Command->execute()
#12 /app/vendor/laravel/framework/src/Illuminate/Console/Command.php(152): Symfony\\Component\\Console\\Command\\Command->run()
#13 /app/vendor/symfony/console/Application.php(1078): Illuminate\\Console\\Command->run()
#14 /app/vendor/symfony/console/Application.php(324): Symfony\\Component\\Console\\Application->doRunCommand()
#15 /app/vendor/symfony/console/Application.php(175): Symfony\\Component\\Console\\Application->doRun()
#16 /app/vendor/laravel/framework/src/Illuminate/Console/Application.php(102): Symfony\\Component\\Console\\Application->run()
#17 /app/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(155): Illuminate\\Console\\Application->run()
#18 /app/artisan(35): Illuminate\\Foundation\\Console\\Kernel->handle()
#19 {main}
"} 

looks like the error happens in SnapshotPlan.accept(.....) method when Carbon::createFromFormat is called