test_fs_nodefs_statvfs fails with fs.statfsSync is not a function when running locally

[hoodmane]

I think the version of node being used is too old. I'm not sure how it's determined. Looks like it came from #22932. fs.statfsSync was added in Node v18.15.0

-- begin program output --
Testing statfs for path: /
Testing statfs for path: /working
/tmp/emtest_ujy7com6/emscripten_test_core0_ov_ahfvn/test_nodefs_statvfs.js:2230
          var stats = NODEFS.tryFSOperation(() => fs.statfsSync(path));
                                                     ^

TypeError: fs.statfsSync is not a function