metrics(ticdc): Fix kafka compress ratio issue (#11313)

[ti-chi-bot]

This is an automated cherry-pick of #11313

What problem does this PR solve?

Issue Number: close #11314

What is changed and how it works?

follow the kafka producer compression ratio definition: https://pkg.go.dev/github.com/IBM/sarama#section-readme

compression ratio = Size of original data / Size of compressed data * 100

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

`None`.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@20ee93f). Learn more about missing BASE report.

Additional details and impacted files

Components	Coverage Δ
cdc	61.9870% <0.0000%> (?)
dm	51.3677% <0.0000%> (?)
engine	63.4373% <0.0000%> (?)

Flag	Coverage Δ
unit	57.6190% <0.0000%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

@@               Coverage Diff                @@
##             release-8.1     #11327   +/-   ##
================================================
  Coverage               ?   57.6190%           
================================================
  Files                  ?        853           
  Lines                  ?     126125           
  Branches               ?          0           
================================================
  Hits                   ?      72672           
  Misses                 ?      48048           
  Partials               ?       5405           

[3AceShowHand]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 3AceShowHand

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [3AceShowHand]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[3AceShowHand]

/retest

[3AceShowHand]

/retest

[3AceShowHand]

/retest

[3AceShowHand]

/retest

[ti-chi-bot]

@ti-chi-bot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cdc-integration-storage-test	f00f811	link	true	/test cdc-integration-storage-test

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[3AceShowHand]

/retest