build: reset embedder string to "-node.0"

PR-URL: #16271
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

common.gypi

@@ -27,7 +27,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.15',
+    'v8_embedder_string': '-node.0',
 
     # Enable disassembler for `--print-code` v8 options
     'v8_enable_disassembler': 1,