[7.17](backport #30453) Fix TestNewModuleRegistry flaky test

[mergify]

This is an automatic backport of pull request #30453 done by Mergify.
Cherry-pick of 8ab92d8 has failed:

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	both modified:   filebeat/fileset/modules_test.go

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💔 Build Failed

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Build stats

• Start Time: 2022-02-17T18:19:50.162+0000

• Duration: 19 min 11 sec

Steps errors

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filebeat-lint - make -C filebeat check;make -C filebeat update;make -C x-pack/filebeat check;make

• Took 1 min 38 sec . View more details here
• Description: make -C filebeat check;make -C filebeat update;make -C x-pack/filebeat check;make -C x-pack/filebeat update;make check-no-changes;

x-pack/filebeat-lint - make -C x-pack/filebeat check;make -C x-pack/filebeat update;make -C filebe

• Took 2 min 54 sec . View more details here
• Description: make -C x-pack/filebeat check;make -C x-pack/filebeat update;make -C filebeat check;make -C filebeat update;make check-no-changes;

Error signal

• Took 0 min 0 sec . View more details here
• Description: Error 'hudson.AbortException: script returned exit code 2'

❕ Flaky test report

No test was executed to be analysed.

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