Add support for libvips in addition to ImageMagick (#30090)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

Dockerfile

@@ -43,6 +43,8 @@ ENV \
 # Apply Mastodon version information
   MASTODON_VERSION_PRERELEASE="${MASTODON_VERSION_PRERELEASE}" \
   MASTODON_VERSION_METADATA="${MASTODON_VERSION_METADATA}" \
+# Enable libvips
+  MASTODON_USE_LIBVIPS=true \
 # Apply Mastodon static files and YJIT options
   RAILS_SERVE_STATIC_FILES=${RAILS_SERVE_STATIC_FILES} \
   RUBY_YJIT_ENABLE=${RUBY_YJIT_ENABLE} \
@@ -97,7 +99,7 @@ RUN \
     curl \
     ffmpeg \
     file \
-    imagemagick \
+    libvips42 \
     libjemalloc2 \
     patchelf \
     procps \