Bump System.Security.Cryptography.Pkcs from 5.0.1 to 6.0.0

Bumps [System.Security.Cryptography.Pkcs](https://github.com/dotnet/runtime) from 5.0.1 to 6.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v5.0.1...v6.0.0)

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

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

src/PeNet/PeNet.csproj

@@ -62,7 +62,7 @@
 
   <ItemGroup>
     <PackageReference Include="PeNet.Asn1" Version="2.0.0" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="5.0.1" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="6.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
   </ItemGroup>
   <ItemGroup>