[8.6](backport #2142) actions: use go-version-file: .go-version

[mergify]

This is an automatic backport of pull request #2142 done by Mergify.

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[elasticmachine]

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• Start Time: 2022-11-30T14:34:42.703+0000

• Duration: 12 min 57 sec

Test stats 🧪

Test	Results
Failed	0
Passed	393
Skipped	1
Total	394

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