crypto: check result of BIO_new in X509ToObject

Match other call sites of BIO_new(BIO_s_mem()) and CHECK the result of
the call.

Refs: nodejs@fb3a9cd

PR-URL: nodejs#41979
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

src/crypto/crypto_common.cc

@@ -1351,6 +1351,7 @@ MaybeLocal<Object> X509ToObject(
   Local<Object> info = Object::New(env->isolate());
 
   BIOPointer bio(BIO_new(BIO_s_mem()));
+  CHECK(bio);
 
   if (names_as_string) {
     // TODO(tniessen): this branch should not have to exist. It is only here