Specify platform version for net8.0-ios to avoid error NU1012

Author: kiromaru

dotnet/nuget/SEALNet-multi.nuspec.in

@@ -16,10 +16,6 @@
     <tags>c# crypto cryptography homomorphic encryption</tags>
     <license type="file">LICENSE</license>
     <requireLicenseAcceptance>true</requireLicenseAcceptance>
-    <dependencies>
-        <group targetFramework="net8.0"/>
-        <group targetFramework="net8.0-ios"/>
-    </dependencies>
   </metadata>
   <files>
     <file src="SEALNet.targets" target="buildTransitive/Microsoft.Research.SEALNet.targets" />
@@ -34,8 +30,8 @@
     <file src="$NUGET_IOS_ARM64_SEAL_PATH$" target="runtimes/ios-arm64/native/" />
     <file src="../../build/bin/dotnet/$Configuration$/net8.0/SEALNet.dll" target="lib/net8.0/" />
     <file src="../../build/bin/dotnet/$Configuration$/net8.0/SEALNet.xml" target="lib/net8.0/" />
-    <file src="../../build/bin/dotnet/$Configuration$/net8.0-ios/SEALNet.dll" target="lib/net8.0-ios/" />
-    <file src="../../build/bin/dotnet/$Configuration$/net8.0-ios/SEALNet.xml" target="lib/net8.0-ios/" />
+    <file src="../../build/bin/dotnet/$Configuration$/net8.0-ios/SEALNet.dll" target="lib/net8.0-ios11.0/" />
+    <file src="../../build/bin/dotnet/$Configuration$/net8.0-ios/SEALNet.xml" target="lib/net8.0-ios11.0/" />
     <file src="../../LICENSE" target="LICENSE" />
     <file src="../../NOTICE" target="/ThirdPartyNotices" />
   </files>