[8.3](backport #595) ci: enable build notifications as GitHub issues

[mergify]

This is an automatic backport of pull request #595 done by Mergify.

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Mergify commands and options

More conditions and actions can be found in the documentation.

You can also trigger Mergify actions by commenting on this pull request:

• @Mergifyio refresh will re-evaluate the rules
• @Mergifyio rebase will rebase this PR on its base branch
• @Mergifyio update will merge the base branch into this PR
• @Mergifyio backport <destination> will backport this PR on <destination> branch

Additionally, on Mergify dashboard you can:

• look at your merge queues
• generate the Mergify configuration with the config editor.

Finally, you can contact us on https://mergify.com

[elasticmachine]

❕ Build Aborted

Either there was a build timeout or someone aborted the build.

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2022-06-23T09:16:20.583+0000

• Duration: 122 min 21 sec

Test stats 🧪

Test	Results
Failed	0
Passed	4795
Skipped	17
Total	4812

Steps errors

Expand to view the steps failures

Error signal

• Took 0 min 0 sec . View more details here
• Description: githubApiCall: The REST API call https://api.github.com/orgs/elastic/members/mergify[bot] return the message : java.lang.Exception: httpRequest: Failure connecting to the service https://api.github.com/orgs/elastic/members/mergify[bot] : httpRequest: Failure connecting to the service https://api.github.com/orgs/elastic/members/mergify[bot] : Code: 404Error: {"message":"User does not exist or is not a member of the organization","documentation_url":"https://docs.github.com/rest/reference/orgs#check-organization-membership-for-a-user"}

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• /package : Generate the packages.

• run integration tests : Run the Elastic Agent Integration tests.

• run end-to-end tests : Generate the packages and run the E2E Tests.

• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	97.26% (71/73)	👍
Files	69.196% (155/224)	👍
Classes	68.904% (308/447)	👍
Methods	52.709% (856/1624)	👍
Lines	38.729% (9099/23494)	👎 -0.043
Conditionals	100.0% (0/0)	💚