Cherry-pick #25482 to 7.x: [Filebeat] Additional parsing for haproxy.http.request.raw_request_line

[legoguy1000]

Cherry-pick of PR #25482 to 7.x branch. Original message:

What does this PR do?

Parses the haproxy.http.request.raw_request_line field into url.original,http.request.method,http.version

Why is it important?

Allows for better correlation between other logs.

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.

Author's Checklist

• [ ]

How to test this PR locally

cd beats/filebeat
TESTING_FILEBEAT_MODULES=haproxy mage -v pythonIntegTest

Related issues

• Closes [Filebeat] [HaProxy] Parse http and url fields #25480

Use cases

Screenshots

Logs

[botelastic]

This pull request doesn't have a Team:<team> label.

[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 backport_25482_7.x upstream/backport_25482_7.x
git merge upstream/7.x
git push upstream backport_25482_7.x

[legoguy1000]

@P1llus I think i used the chery_pick_pr script properly.

[elasticmachine]

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• Build Cause: P1llus commented: run tests

• Start Time: 2021-05-03T14:27:13.420+0000

• Duration: 116 min 45 sec

• Commit: 04b40fb

Test stats 🧪

Test	Results
Failed	0
Passed	13676
Skipped	2299
Total	15975

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Test stats 🧪

Test	Results
Failed	0
Passed	13676
Skipped	2299
Total	15975

[P1llus]

run tests

[P1llus]

From what I can see, everything went just fine @legoguy1000 :) Once the CI passes I will merge it directly, as CP's don't require another review.