refactor: replace protobufjs with protobufjs-cli in examples/protobufjs

[Katee]

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• [ ] Bugfix
• [ ] Feature (please, look at the "Scope of the project" section in the README.md file)
• [ ] Code style update (formatting, local variables)
• [x] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Documentation content changes
• [ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Unchanged.

Does this PR introduce a breaking change?

• [ ] Yes
• [x] No

Other information

I ran scripts/update_nested_lock_files.sh to create the updates in examples/protobufjs/yarn.lock.