docs: add missing feature_image for hacker wars bulletins 05/05 and 05/06

Author: ps1dr3x

content/bulletin/2026-05-05.md

@@ -4,6 +4,7 @@ date: 2026-05-05T08:00:00+02:00
 draft: false
 author: "sig9"
 type: "bulletin"
+feature_image: "/images/bulletin/hacker-wars-2026-05-05.png"
 ---
 
 _Your daily dose of infosec chaos_

content/bulletin/2026-05-06.md

@@ -4,6 +4,7 @@ date: 2026-05-06T12:00:00+02:00
 draft: false
 author: "sig9"
 type: "bulletin"
+feature_image: "/images/bulletin/hacker-wars-2026-05-06.png"
 ---
 
 _Your daily dose of infosec chaos_