doc: fix misplaced entries in test/common doc

One entry is placed in the wrong module and other entries are not in
alphabetical order.

PR-URL: https://github.com/nodejs/node/pull/20117


Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>