fix override of crypt_shared path

Always try to set the `cryptSharedLib`path override, regardless of whether `extraOptions` is set in the test.

Author: kevinAlbs

src/libmongoc/tests/unified/entity-map.c

@@ -1413,10 +1413,13 @@ _parse_and_set_auto_encryption_opts (mongoc_client_t *client, bson_t *opts, bson
 
    if (extra_options) {
       extra = bson_copy (extra_options);
-      maybe_set_extra_crypt_shared (extra);
-      mongoc_auto_encryption_opts_set_extra (auto_encryption_opts, extra);
+   } else {
+      extra = bson_new ();
    }
 
+   maybe_set_extra_crypt_shared (extra);
+   mongoc_auto_encryption_opts_set_extra (auto_encryption_opts, extra);
+
    if (!mongoc_client_enable_auto_encryption (client, auto_encryption_opts, error)) {
       goto done;
    }