v7.1.0

• Fixed crash when using QueueType::BoundedDropping or QueueType::UnboundedDropping after a message drops. (#553)
• Improved performance of std::forward_list decoding.
• Corrected reported dropped message count; previously, log flush attempts were incorrectly included.
• Removed leftover files after running some unit tests.
• Stabilized regression tests.
• Suppressed false-positive -Wstringop-overflow warnings (e.g., with GCC 13).
• Fixed MinGW build and added MinGW builds to GitHub Actions.