build: fix -j propagation to ninja

The expression containing MAKEFLAGS must be evaluated in a deferred
context for the propagation to work in GNU make. Otherwise, regardless
of the -j value passed to make, ninja will spawn a potentially greater
number of parallel compilation tasks, which can quickly exhaust all
available memory.

PR-URL: #53088
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Makefile

@@ -146,7 +146,8 @@ endif
 ifdef JOBS
  NINJA_ARGS := $(NINJA_ARGS) -j$(JOBS)
 else
- NINJA_ARGS := $(NINJA_ARGS) $(filter -j%,$(MAKEFLAGS))
+ IMMEDIATE_NINJA_ARGS := $(NINJA_ARGS)
+ NINJA_ARGS = $(IMMEDIATE_NINJA_ARGS) $(filter -j%,$(MAKEFLAGS))
 endif
 $(NODE_EXE): config.gypi out/Release/build.ninja
  $(NINJA) -C out/Release $(NINJA_ARGS)