LibProtocol+LibGemini+LibHTTP: Provide root certificates to LibTLS

Now we (almost) verify all the sites we browse.
Certificate verification failures should not be unexpected, as the
existing CA certificates are likely not complete.

Services/ProtocolServer/main.cpp

@@ -27,6 +27,7 @@
 #include <LibCore/EventLoop.h>
 #include <LibCore/LocalServer.h>
 #include <LibIPC/ClientConnection.h>
+#include <LibTLS/Certificate.h>
 #include <ProtocolServer/ClientConnection.h>
 #include <ProtocolServer/GeminiProtocol.h>
 #include <ProtocolServer/HttpProtocol.h>
@@ -38,6 +39,10 @@ int main(int, char**)
         perror("pledge");
         return 1;
     }
+
+    // Ensure the certificates are read out here.
+    (void)DefaultRootCACertificates::the();
+
     Core::EventLoop event_loop;
     // FIXME: Establish a connection to LookupServer and then drop "unix"?
     if (pledge("stdio inet shared_buffer accept unix", nullptr) < 0) {