[8.5](backport #33172) x-pack/packetbeat: bump npcap version to v1.71

[mergify]

This is an automatic backport of pull request #33172 done by Mergify.

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• Start Time: 2022-09-27T11:23:16.093+0000

• Duration: 45 min 44 sec

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Test	Results
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Passed	14
Skipped	1
Total	15

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