Build(deps): Bump System.Security.Permissions from 7.0.0 to 8.0.0 (#384)

Bumps [System.Security.Permissions](https://github.com/dotnet/runtime) from 7.0.0 to 8.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.0...v8.0.0)

---
updated-dependencies:
- dependency-name: System.Security.Permissions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Directory.Packages.props

@@ -23,7 +23,7 @@
     <PackageVersion Include="NuGet.Protocol" Version="6.7.0" />
     <PackageVersion Include="SharpCompress" Version="0.34.1" />
     <PackageVersion Include="System.CodeDom" Version="8.0.0" />
-    <PackageVersion Include="System.Security.Permissions" Version="7.0.0" />
+    <PackageVersion Include="System.Security.Permissions" Version="8.0.0" />
     <PackageVersion Include="xunit" Version="2.6.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.3" />
     <PackageVersion Include="XunitXml.TestLogger" Version="3.1.17" />