Update publish-subscribe-channel.adoc

[OscarGalindo]

Simple typo

Description

Target

• I checked that the commit is targeting the correct branch (note that Camel 3 uses camel-3.x, whereas Camel 4 uses the main branch)

Tracking

• If this is a large change, bug fix, or code improvement, I checked there is a JIRA issue filed for the change (usually before you start working on it).

Apache Camel coding standards and style

• I checked that each commit in the pull request has a meaningful subject line and body.

• I formatted the code using mvn -Pformat,fastinstall install && mvn -Psourcecheck

[github-actions]

🌟 Thank you for your contribution to the Apache Camel project! 🌟

⚠️ Please note that the changes on this PR may be tested automatically.

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[oscerd]

Can you please do the same on main and camel-3.x branches? Thanks