Enabled lifetime window for batch's byte size metric

[andsel]

Release notes

For batch size byte size metrics also the lifetime window was added.

What does this PR do?

In BatchStructureMetric adds the lifetime retention policy.
In stats.rb API presentation layer add lifetime window only for batch's byte size metric.

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

LEt the user to know the p50 p90 and max for the whole life execution time.

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

Related issues

• Closes Expose lifetime timeframe for batch's byte_size metric for p50, p90 and max #18898

Use cases

Screenshots

Logs

[github-actions]

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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

[estolfo]

The code looks good, with just one minor test description update.

I did some local testing. This is the byte size metric document without these changes (main):

"byte_size" : {
          "current" : 8375,
          "average" : {
            "lifetime" : 8375,
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375
          },
          "p50" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375
          },
          "p90" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375
          },
          "max" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375
          }

and this is the document with these changes:

"byte_size" : {
          "current" : 8375,
          "average" : {
            "lifetime" : 8375,
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375
          },
          "p50" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375,
            "lifetime" : 8375
          },
          "p90" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375,
            "lifetime" : 8375
          },
          "max" : {
            "last_1_minute" : 8375,
            "last_5_minutes" : 8375,
            "lifetime" : 8375
          }

[elasticmachine]

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cc @andsel