docs(jms): fix stale schema references and broken links

[karthikajay04]

Description

This PR fixes stale and broken references in the JMS bindings documentation.

• Removed an invalid reference to a non-existent “Schema Array” section in the AsyncAPI spec
• Updated the properties field description to correctly reflect an array of name/value objects, matching the existing examples
• Removed broken JSON Schema links (json_schemas/*.json) that were returning 404 errors

These changes improve clarity and prevent confusion for users reading the JMS bindings docs.
This is a documentation-only change and does not affect behavior.

Related issue(s)

Fixes #290

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