Update dotnet monorepo

Author: renovate[bot]

global.json

@@ -1,7 +1,7 @@
 {
     "sdk": {
         "allowPrerelease": true,
-        "version": "9.0.101",
+        "version": "9.0.300",
         "rollForward": "latestFeature"
     }
 }

src/Tasks/Tasks.csproj

@@ -36,7 +36,7 @@
     </ItemGroup>
 
     <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp'">
-        <PackageReference Include="System.Text.Encoding.CodePages" Version="9.0.0" CopyLocal="false" Publish="false" PrivateAssets="All" />
+        <PackageReference Include="System.Text.Encoding.CodePages" Version="9.0.6" CopyLocal="false" Publish="false" PrivateAssets="All" />
     </ItemGroup>
     <Target Name="RemoveMicrosoftBuildDllsFromOutput" AfterTargets="ResolveReferences">
         <PropertyGroup>