Update to .NET 8.0

Author: Kalobi

CelesteMod/Source/CelesteMod-core.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <AssemblyName>CelesteMod</AssemblyName>
         <RootNamespace>Celeste.Mod.CelesteMod</RootNamespace>
         <LangVersion>latest</LangVersion>

CelesteMod/everest-core.yaml

@@ -3,4 +3,4 @@
   DLL: bin/CelesteMod.dll
   Dependencies:
     - Name: EverestCore
-      Version: 1.5421.0
+      Version: 1.5577.0