CAMEL-22981: Convert PQC DataFormat basic usage example to Java/YAML tabs

[urunni88]

…tabs

Description

Converts the "Basic Usage" example on the PQC DataFormat page into a Java/YAML [tabs] block, matching the tab format used across the EIP and other component docs.

The example already had both a Java DSL and a YAML DSL version written as separate sections; this combines them into tabs. It also removes the "Java-only" caption on that example, which was inaccurate since a YAML equivalent exists — replaced with a neutral descriptive caption.

Other snippets on the page that are genuinely Java-only (e.g. configuration setup, manual KEM steps) are left as-is.

This is a documentation-only change (single .adoc file), so no code is affected. I used an AI assistant to help with the AsciiDoc formatting; I reviewed and verified the rendered output myself.

After (local preview — Java and YAML tabs):

Part of CAMEL-22981.

Target

• I checked that the commit is targeting the correct branch (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 have run mvn clean install -DskipTests locally from root folder and I have committed all auto-generated changes.

AI-assisted contributions

• If this PR includes AI-generated code, commits have proper co-authorship attribution (e.g., Co-authored-by trailers) and the PR description identifies the AI tool used.