Fix space between logos in the payment banner experiment

[moon0326]

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• Have you followed the WooCommerce Contributing guideline?
• Does your code follow the WordPress' coding standards?
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Changes proposed in this Pull Request:

Closes #33053 .

This PR adjusts the space between payment logos in the payment banner experiment.

How to test the changes in this Pull Request:

1. Follow test instructions on pbIJXs-1P0-p2
2. Make sure logos are aligned correctly.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?
• Have you created a changelog file for each project being changed, ie pnpm nx changelog <project>?

FOR PR REVIEWER ONLY:

• I have reviewed that everything is sanitized/escaped appropriately for any SQL or XSS injection possibilities. I made sure Linting is not ignored or disabled.

[botwoo]

📊 Test reports for 79f7456 `` have been published and are accessible through the following links:

• REST API Test Report
• E2E Test Report (TBC)

Visit the WooCommerce Test Reports homepage to view all published reports. See the FAQs page if you're having problems accessing them.

[botwoo]

📊 Test reports for 362e984 Set icon width to 51px have been published and are accessible through the following links:

• REST API Test Report
• E2E Test Report (TBC)

Visit the WooCommerce Test Reports homepage to view all published reports. See the FAQs page if you're having problems accessing them.

[chihsuan]

@moon0326 Thanks for the fix! Looks good and tested well. 🚢

[github-actions]

Hi @moon0326, thanks for merging this pull request. Please take a look at these follow-up tasks you may need to perform:

• Add the release: add testing instructions label