build: make --without-snapshot imply --without-node-snapshot

PR-URL: #29294
Fixes: #29243
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>

configure.py

@@ -969,7 +969,8 @@ def configure_node(o):
       cross_compiling and want_snapshots)
 
   if not options.without_node_snapshot:
-    o['variables']['node_use_node_snapshot'] = b(not cross_compiling)
+    o['variables']['node_use_node_snapshot'] = b(
+        not cross_compiling and want_snapshots)
   else:
     o['variables']['node_use_node_snapshot'] = 'false'