[8.10](backport #3601) [Automation] Bump Golang version to 1.20.10

[mergify]

This is an automatic backport of pull request #3601 done by Mergify.
Cherry-pick of 05d4eaf has failed:

On branch mergify/bp/8.10/pr-3601
Your branch is up to date with 'origin/8.10'.

You are currently cherry-picking commit 05d4eaff31.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   .go-version
	both modified:   .golangci.yml
	both modified:   Dockerfile
	both modified:   Dockerfile.skaffold
	added by us:     changelog/fragments/1697102363-updating_agentautodiscovery_810.yaml
	both deleted:    changelog/fragments/1697111928-upgrade-to-go-1.20.9.yaml
	added by them:   changelog/fragments/1697229987-Upgrade-to-Go-1.20.10.yaml
	both modified:   version/docs/version.asciidoc

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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• Start Time: 2023-10-16T16:06:00.995+0000

• Duration: 55 min 43 sec

Test stats 🧪

Test	Results
Failed	0
Passed	6317
Skipped	55
Total	6372

💚 Flaky test report

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	98.765% (80/81)	👍
Files	67.944% (195/287)	👍
Classes	66.234% (357/539)	👍
Methods	53.05% (1122/2115)	👍
Lines	38.599% (12774/33094)	👍
Conditionals	100.0% (0/0)	💚