buildDotnetModule: explicitly set UseAppHost to true

On macOS, the native executable is not generated by default
on Catalina and above. See https://github.com/dotnet/sdk/issues/10780

pkgs/build-support/dotnet/build-dotnet-module/hooks/dotnet-build-hook.sh

@@ -25,6 +25,7 @@ dotnetBuildHook() {
                 -p:BuildInParallel=$parallelBuildFlag \
                 -p:ContinuousIntegrationBuild=true \
                 -p:Deterministic=true \
+                -p:UseAppHost=true \
                 --configuration "@buildType@" \
                 --no-restore \
                 ${versionFlag-} \

pkgs/build-support/dotnet/build-dotnet-module/hooks/dotnet-install-hook.sh

@@ -11,6 +11,7 @@ dotnetInstallHook() {
             dotnet publish "$project" \
                 -p:ContinuousIntegrationBuild=true \
                 -p:Deterministic=true \
+                -p:UseAppHost=true \
                 --output "$out/lib/${pname}" \
                 --configuration "@buildType@" \
                 --no-build \