Add libgiognutls.so to runtime deps (glib-networking GIO TLS module for HTTPS)

MANIFEST.usm

@@ -30,6 +30,7 @@
       "lib:libglib-2.0.so.0",
       "lib:libgobject-2.0.so.0",
       "lib:libgio-2.0.so.0",
+      "lib:libgiognutls.so",
       "lib:libinvercargill-1.so",
       "lib:libinvercargill-json.so",
       "lib:libc.so.6",