Update test:gen-server target

Co-authored-by: George Gevoian <[email protected]>

package.json

@@ -20,7 +20,7 @@
     "test:client": "./test/test_env.sh mocha ${DEBUG:+'-b'} '_build/test/client/**/*.js'",
     "test:common": "./test/test_env.sh mocha ${DEBUG:+'-b'} '_build/test/common/**/*.js'",
     "test:server": "TEST_SUITE=server TEST_SUITE_FOR_TIMINGS=server TIMINGS_FILE=test/timings/server.txt ./test/test_env.sh mocha ${DEBUG:+'-b'} -g \"${GREP_TESTS}\" -R test/xunit-file '_build/test/server/**/*.js'",
-    "test:gen-server": "TEST_SUITE=server TEST_SUITE_FOR_TIMINGS=server TIMINGS_FILE=test/timings/server.txt ./test/test_env.sh mocha ${DEBUG:+'-b'} -g \"${GREP_TESTS}\" -R test/xunit-file '_build/test/gen-server/**/*.js'",
+    "test:gen-server": "TEST_SUITE=gen-server TEST_SUITE_FOR_TIMINGS=gen-server TIMINGS_FILE=test/timings/gen-server.txt ./test/test_env.sh mocha ${DEBUG:+'-b'} -g \"${GREP_TESTS}\" -R test/xunit-file '_build/test/gen-server/**/*.js'",
     "test:smoke": "./test/test_env.sh mocha _build/test/nbrowser/Smoke.js",
     "test:docker": "./test/test_under_docker.sh",
     "test:python": "sandbox_venv3/bin/python sandbox/grist/runtests.py ${GREP_TESTS:+discover -p \"test*${GREP_TESTS}*.py\"}",