Update Ubuntu 20.04 with 22.04 for Docker base images

[vinit-chauhan]

Proposed commit message

Update Ubuntu 20.04 with 22.04 for Docker base images.

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.

Disruptive User Impact

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes Replace Ubuntu 20.04 with 24.04 for Docker base images #40743

Use cases

Screenshots

Logs

[mergify]

This pull request does not have a backport label.
If this is a bug or security fix, could you label this PR @vinit-chauhan? 🙏.
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

[mergify]

backport-8.x has been added to help with the transition to the new branch 8.x.
If you don't need it please use backport-skip label and remove the backport-8.x label.

[elasticmachine]

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

[pierrehilbert]

/test

[pierrehilbert]

run docs-build

[mauri870]

LGTM, this seems to be the only occurrences of the ubuntu image in beats. I'm not sure if there are other places we should upgrade this as well.

[mauri870]

Adding @andrzej-stencel as reviewer since it is the assignee for the issue.

[vinit-chauhan]

LGTM, this seems to be the only occurrences of the ubuntu image in beats. I'm not sure if there are other places we should upgrade this as well.

AFAIK, In all other beat-specific Dockerfiles we use the golang image as the base image.
We are only using Ubuntu images once to package Linux images for Beats.

[pierrehilbert]

/test

[pierrehilbert]

run docs-build