Add max value for batch size windowed histograms

[andsel]

Release notes

Expose the max value for batch's byte_size, reported in 1,5 and 15 minutes time windows.

What does this PR do?

Update the value class to expose HdrHistogram's max value. This is used to present such value only for batch's byte_size in the stats API.

Why is it important/What is the impact to the user?

Let the user to know which is the max value for that metric that the pipeline faced in recent time windows.

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 (and/or docker env variables)
• I have added tests that prove my fix is effective or that my feature works

Author's Checklist

• [ ]

How to test this PR locally

Follow same instructions of #18770 .

Related issues

• Closes [Batch metrics] Provide the batch's byte size max for various time windows #18797

[github-actions]

🤖 GitHub comments

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[mergify]

This pull request does not have a backport label. Could you fix it @andsel? 🙏
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.
• If no backport is necessary, please add the backport-skip label

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: d6fba75

Failed CI Steps

• 🥼 Integration Tests - FIPS mode / part 4-of-6
• 🥼 Integration Tests - FIPS mode / part 4-of-6
• 🥼 Integration Tests - FIPS mode / part 4-of-6

cc @andsel