Improve GHSA-5cfw-whc5-jqgh: add affected/patched version range

[agencyhub]

Improvement suggestion for GHSA-5cfw-whc5-jqgh (CVE-2026-14356), submitted on behalf of the plugin vendor (LTDHunt / FleekDash).

Changes:

• Adds affected version range: all versions <= 2.6.2.2, fixed in 2.6.2.5 (matches the advisory description: "vulnerable ... in all versions up to, and including, 2.6.2.2").
• Adds a summary line and last_known_affected_version_range, following the format used in merged WordPress-plugin improvements (e.g. [GHSA-g9w4-m5fx-x3wv] The Yoast Duplicate Post plugin for WordPress is... #7194).

Notes for curation:

• FleekDash is a premium WordPress plugin distributed outside the wp.org directory, so it has no Packagist entry. I used wpackagist-plugin/fleekdash as the conventional WP-plugin package name — happy to adjust to whatever naming the curation team prefers for non-registry WP plugins.
• Public reference confirming the patched version: Rapid7 lists "Update fleekdash plugin to version 2.6.2.5, or a newer patched version" as the solution (https://www.rapid7.com/db/vulnerabilities/cve-2026-14356/); the Wordfence record is the upstream source.