fix: Fixes TCPServer accept async, makes Firewall/IP Limiter multithr…

…eaded (#2134)

fix: Fixes serialization generator issue with arrays (#2120)

Bumps dependencies. Fixes bugs with serialization generator (#2119)

fix: Moves snapshot request synchronously (#2105)

fix: Fixes the wrong unit used for BuffIcon Timers (#2093)

fix: Fixes some buff icons off by 1s (#2073)

chore(deps): Bumps modernuo schema generator to 2.12.18 (#2039)

feat: Updates to .NET 9 (#1984)

### Summary

* Bumps to .NET 9 with updated dependencies
* Comparing a value type against null is no longer allowed
* CI/CD now uses the version specified in global.json
* Serialization generator updated to .NET 9 with bug fixes, fixes to turkish language, and parallelization

fix: Removes redundant conditional check in house demolish gump (#2004)

fix: Fixes searching null map crash (#1975)