update use to magick convert

...esponsive_images/security-insecurity-transition-1920.webp

.../responsive_images/security-insecurity-transition-320.jpg

...responsive_images/security-insecurity-transition-320.webp

.../responsive_images/security-insecurity-transition-640.jpg

...responsive_images/security-insecurity-transition-640.webp

...s/responsive_images/security-insecurity_intro_v2-1280.jpg

.../responsive_images/security-insecurity_intro_v2-1280.webp

...s/responsive_images/security-insecurity_intro_v2-1920.jpg

.../responsive_images/security-insecurity_intro_v2-1920.webp

...es/responsive_images/security-insecurity_intro_v2-320.jpg

...s/responsive_images/security-insecurity_intro_v2-320.webp

...es/responsive_images/security-insecurity_intro_v2-640.jpg

...s/responsive_images/security-insecurity_intro_v2-640.webp