Revert "deps: disable V8 concurrent sparkplug compilation"

This reverts commit 57699ff.

PR-URL: #58187
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: targos

common.gypi

@@ -38,7 +38,7 @@
 
     # 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.10',
+    'v8_embedder_string': '-node.11',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/flags/flag-definitions.h

@@ -1106,7 +1106,7 @@ DEFINE_BOOL(baseline_batch_compilation, true, "batch compile Sparkplug code")
 DEFINE_BOOL_READONLY(concurrent_sparkplug, false,
                      "compile Sparkplug code in a background thread")
 #else
-DEFINE_BOOL(concurrent_sparkplug, false,
+DEFINE_BOOL(concurrent_sparkplug, ENABLE_SPARKPLUG_BY_DEFAULT,
             "compile Sparkplug code in a background thread")
 DEFINE_WEAK_IMPLICATION(future, concurrent_sparkplug)
 DEFINE_NEG_IMPLICATION(predictable, concurrent_sparkplug)