[9.0](backport #5019) [Automation] Bump Golang version to 1.24.4

[mergify]

Bump golang-version to latest version

Update .go-version

1 file(s) updated with "1.24.4": * .go-version

Update .golangci.yml

1 file(s) updated with "1.24.4": * .golangci.yml

Update go.mod

1 file(s) updated with "go 1.24.4": * go.mod

Update go.mod

1 file(s) updated with "go 1.24.4": * testing/go.mod

Update go.mod

1 file(s) updated with "go 1.24.4": * dev-tools/go.mod

GitHub Action workflow link

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This is an automatic backport of pull request #5019 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 015d0b4 has failed:

On branch mergify/bp/9.0/pr-5019
Your branch is up to date with 'origin/9.0'.

You are currently cherry-picking commit 015d0b4.
  (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)

Changes to be committed:
	modified:   .go-version
	modified:   .golangci.yml
	modified:   go.mod
	modified:   testing/go.mod

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   dev-tools/go.mod

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

[prodsecmachine]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)

[pkoutsovasilis]

oh yep, this fails because elastic-agent 9.0.3-SNAPSHOT doesn't exist 🙁

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube