Update staff photo

Author: thomas-kl1

public/images/staff/audrey_perrad.jpg

@@ -48,7 +48,7 @@
       "companyUrl": "https://www.synolia.com/",
       "linkedin": "https://www.linkedin.com/in/audrey-perrad-6ab812a",
       "role": "Marketing and Communications Manager",
-      "photo": "/images/staff/audrey_perrad.jpg",
+      "photo": "/images/staff/audrey_perrad.png",
       "biography": ""
     },
     {
@@ -70,7 +70,7 @@
       "companyUrl": "https://www.synolia.com/",
       "linkedin": "https://www.linkedin.com/in/gautier-harot-0a961566",
       "role": "Director of E-commerce Operations",
-      "photo": "/images/staff/gauthier_harot.jpg",
+      "photo": "/images/staff/gauthier_harot.png",
       "biography": ""
     },
     {