wpcomsh: Update wc-calypso-bridge version to 2.5.4

[epeicher]

Proposed changes:

THis PR bumps the version of wc-calypso-bridge to 2.5.4, which includes the following change:

• Update Onbarding steps for PayPal wc-calypso-bridge#1491

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

Does this pull request change what data or activity we track or use?

No, it does not.

Testing instructions:

The changes related to the wc-calypso-bridge were already tested in the related PR (Automattic/wc-calypso-bridge#1491). In that PR, there are some testing instructions

[github-actions]

Thank you for your PR!

When contributing to Jetpack, we have a few suggestions that can help us test and review your patch:

• ✅ Include a description of your PR changes.
  
• ✅ Add a "[Status]" label (In Progress, Needs Team Review, ...).
  
• ✅ Add testing instructions.
  
• ✅ Specify whether this PR includes any changes to data or privacy.
  
• ✅ Add changelog entries to affected projects
  

This comment will be updated as you work on your PR and make changes. If you think that some of those checks are not needed for your PR, please explain why you think so. Thanks for cooperation 🤖

---

The e2e test report can be found here. Please note that it can take a few minutes after the e2e tests checks are complete for the report to be available.

---

Once your PR is ready for review, check one last time that all required checks appearing at the bottom of this PR are passing or skipped.
Then, add the "[Status] Needs Team Review" label and ask someone from your team review the code. Once reviewed, it can then be merged.
If you need an extra review from someone familiar with the codebase, you can update the labels from "[Status] Needs Team Review" to "[Status] Needs Review", and in that case Jetpack Approvers will do a final review of your PR.

---

Wpcomsh plugin:

• Next scheduled release: August 6, 2024.
• Scheduled code freeze: July 29, 2024.

If you have any questions about the release process, please ask in the #jetpack-releases channel on Slack.

[gavande1]

Looks good to me! I haven't tested anything since this PR just updates a version and adds a change log entry, so I am comfortable approving this.

[cpapazoglou]

The 2.5.4 release tag of wc-calypso-bridge is already created.
LGTM