spdlog Files

• Update bundled fmt version to 11.1.3 by @gabime in https://github.com/gabime/spdlog/pull/3332
• Use fwrite_unlocked() if available by @gabime in https://github.com/gabime/spdlog/pull/3276 and https://github.com/gabime/spdlog/pull/3318
• On-demand truncation for basic file sinks by @matteodelseppia in https://github.com/gabime/spdlog/pull/3280
• Allow manual rotation of rotating_file_sink by @hjs-ast in https://github.com/gabime/spdlog/pull/3269
• Make null_sink final by @gabime in https://github.com/gabime/spdlog/pull/3267
• Fix: Add explicit fmt:: and std:: to avoid ambiguous calls by @LiAuTraver in https://github.com/gabime/spdlog/pull/3259
• Fix: Pass /utf-8 only when the compiler is MSVC by @miyanyan in https://github.com/gabime/spdlog/pull/3260
• Fix: Support bin_to_hex() when using std::format by @koniarik in https://github.com/gabime/spdlog/pull/3315
• Support custom environment variables for load_env_levels by @ken-matsui in https://github.com/gabime/spdlog/pull/3327
• Fix: Added a lock to rotate_now() by @matteodelseppia in https://github.com/gabime/spdlog/pull/3281
• Fix: Update to_string_view function for fmt 11.1 by @chenrui333 in https://github.com/gabime/spdlog/pull/3301
• Fix: Remove unused to_string_view overload in fmt >= 11.1 by @jdrouhard in https://github.com/gabime/spdlog/pull/3314
• Fix: Use string_view_literals to resolve issues [#3287] and [#3233] by @yalov in https://github.com/gabime/spdlog/pull/3291
• Fix: Added a lock to set_color_mode(..) in ansicolor_sink by @gabime in https://github.com/gabime/spdlog/pull/3323
• Fix: Corrected comment in daily_file_sink by @F1F88 in https://github.com/gabime/spdlog/pull/3249
• Fix: Compatibility with fmtlib 11.1.1 by @yachoor in https://github.com/gabime/spdlog/pull/3331

Full Changelog: https://github.com/gabime/spdlog/compare/v1.15.0...v1.15.1

Special thanks to @tt4g for helping with community questions and issues