build: fix gtest integration

Signed-off-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
PR-URL: #66735
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Gürgün Dayıoğlu <hey@gurgun.day>

Author: aduh95

configure.py

@@ -2198,7 +2198,7 @@ def configure_napi(output):
 def configure_library(lib, output, pkgname=None, libraries_key='libraries'):
   shared_lib = 'shared_' + lib
   output['variables']['node_' + shared_lib] = b(getattr(options, shared_lib))
-  libraries = output[libraries_key]
+  libraries = output[libraries_key] if libraries_key in output else output['variables'][libraries_key]
 
   if getattr(options, shared_lib):
     (pkg_libs, pkg_cflags, pkg_libpath, _) = pkg_config(pkgname or lib)
@@ -2968,7 +2968,7 @@ def make_bin_override():
 configure_library('cares', output, pkgname='libcares')
 # Only cctest uses gtest; keep it out of the node binary's link line.
 output['variables']['node_shared_gtest_libraries'] = []
-configure_library('gtest', output, 'node_shared_gtest_libraries')
+configure_library('gtest', output, libraries_key='node_shared_gtest_libraries')
 configure_library('hdr_histogram', output)
 configure_library('highway', output, pkgname='libhwy')
 configure_library('merve', output)