Bump Microsoft.Build.Framework and Microsoft.Build.Utilities.Core

Bumps Microsoft.Build.Framework from 16.5.0 to 18.0.2
Bumps Microsoft.Build.Utilities.Core from 16.5.0 to 18.0.2

---
updated-dependencies:
- dependency-name: Microsoft.Build.Framework
  dependency-version: 18.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Microsoft.Build.Utilities.Core
  dependency-version: 18.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Source/Directory.Packages.props

@@ -4,8 +4,8 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="ILRepack.Lib.MSBuild.Task" Version="2.0.44.1" />
-    <PackageVersion Include="Microsoft.Build.Framework" Version="16.5.0" />
-    <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="16.5.0" />
+    <PackageVersion Include="Microsoft.Build.Framework" Version="18.0.2" />
+    <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="18.0.2" />
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="9.0.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />