bump swift-image-formats for dependency centralization.

* Part of our efforts to condense and streamline all the various C/C++ dependencies under one central repository, this is important because Swift makes it all too easy to have 30 different zlib libraries for example, which leads to a headache of duplicated symbols and what not.
* That central repository is https://github.com/the-swift-collective

Signed-off-by: furby™ <devs@wabi.foundation>

Author: furby-tm

Package.resolved

@@ -95,7 +95,7 @@ let package = Package(
         ),
         .package(
             url: "https://github.com/stackotter/swift-image-formats",
-            .upToNextMinor(from: "0.3.1")
+            .upToNextMinor(from: "0.3.2")
         ),
         .package(
             url: "https://github.com/wabiverse/swift-windowsappsdk",