Add kubernetes job name as the controller

[wilsonge]

What does this PR do?

This PR adds kubernetes.job.name in Pods' metadata.

Why is it important?

It enriches the documents of pods belonging to Jobs with the Job name.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Related issues

Similar issue where metadata was added for daemonsets #26808

[cla-checker-service]

💚 CLA has been signed

[mergify]

This pull request does not have a backport label. Could you fix it @wilsonge? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 7./d branch. /d is the digit

NOTE: backport-skip has been added to this pull request.

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2021-12-31T15:55:05.192+0000

• Duration: 104 min 10 sec

• Commit: e443222

Test stats 🧪

Test	Results
Failed	0
Passed	48689
Skipped	4277
Total	52966

💚 Flaky test report

Tests succeeded.

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[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b feature/add-job-name-as-pod-controller upstream/feature/add-job-name-as-pod-controller
git merge upstream/master
git push upstream feature/add-job-name-as-pod-controller

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[ChrsMark]

@wilsonge thank you for contributing this! The patch looks good to me already! Could you please rebase on top of latest master and also sign the CLA?

[wilsonge]

Done

[tetianakravchenko]

/test

[tetianakravchenko]

/test

[tetianakravchenko]

/package

[wilsonge]

Thankyou @tetianakravchenko - it would be nice to have this backported into the 7.x series - but I guess you need to do the labels for that?

[tetianakravchenko]

here is a pr to backport it to 7.17 - #29679

[wilsonge]

Amazing thankyou!