test: rename misnamed test

Rename test-fs-chdir-errormessage.js to
test-process.chdir-errormessage.js. The test is for process.chdir().
There is no fs.chdir().

PR-URL: #20532
Reviewed-By: Vse Mozhet Byt <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>

Author: Trott