fix: fix image size on current sponsors

Author: Gallections

src/components/sponsorsComponents/SponsorCategory.astro

@@ -39,13 +39,12 @@ const {path} = Astro.props;
     }
 
     img {
-        height:6rem;
+        max-height:6rem;
     }
 
     @media (max-width: 880px) {
         img {
             max-width:100%;
-            height:auto;
         }
 
         .category-container {