test: refactor test-fs-read-zero-length.js
Replace equal with strictEqual.
There is not this file in #10698.
Rebased because of the influence of #10698.
All replacement of equal and deepEqual is complete :)
Checklist
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make -j4 test(UNIX), orvcbuild test(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
test