filebeat: deploy k8s: use compression instead of gzip_experimental

[AndersonQ]

Proposed commit message

filebeat: deploy k8s: use `compression` instead of `gzip_experimental`

the docs will be updated on #47881

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. Where relevant, I have used the [stresstest.sh](https://github.com/elastic/beats/blob/main/script/stresstest.sh) script to run them under stress conditions and race detector to verify their stability.
• I have added an entry in ./changelog/fragments using the changelog tool.

Disruptive User Impact

If users are using gzip_experimental, they will need to change it to compression: auto

How to test this PR locally

Use a filebeat with includes #47893
As this PR is just a config change, you can use the config from here directly on #47893

You can follow the sames steps as #47384. But you just need to check the gzip logs are ingested. No need to check again the edge-case when a container crashes.

Related issues

• Closes [Filebeat] Adjust Kubernetes Deployment Manifests #47882

Use cases

Screenshots

Logs

[github-actions]

🤖 GitHub comments

Just comment with:

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

[mergify]

This pull request does not have a backport label.
If this is a bug or security fix, could you label this PR @AndersonQ? 🙏.
For such, you'll need to label your PR with:

• The upcoming major version of the Elastic Stack
• The upcoming minor version of the Elastic Stack (if you're not pushing a breaking change)

To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit
• backport-active-all is the label that automatically backports to all active branches.
• backport-active-8 is the label that automatically backports to all active minor branches for the 8 major.
• backport-active-9 is the label that automatically backports to all active minor branches for the 9 major.

[elasticmachine]

Pinging @elastic/elastic-agent-data-plane (Team:Elastic-Agent-Data-Plane)

[elasticmachine]

Pinging @elastic/elastic-agent-control-plane (Team:Elastic-Agent-Control-Plane)