Rescue IndexError in first? and move on to next segment (#864)

If a msg file is a few bytes larger than expected, first? will throw an IndexError and close the queue. This changes that behavior to instead rescue that IndexError and try to move on to the next segment file. Same fix as for shift? in #671

fixes #669 (again 🙂)

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Queues will no longer be closed if file size is incorrect. Fixes [#669](https://github.com/cloudamqp/lavinmq/issues/669)
+
 ## [2.0.2] - 2024-11-25
 
 ### Fixed