test: add mustCallAtLeast to test-fs-read-stream-resume.js

add mustCallAtLeast to test-fs-read-stream-resume.js

PR-URL: https://github.com/nodejs/node/pull/27456


Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Ouyang Yadong <oyydoibh@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>