fix: ALI block 'cinf' has diffent size for PSB

AdditionalLayerInfo ("ALI") blocks with the 'cinf' key use different
byte length for the size field; PSD files use 4 bytes and PSB files use
8.

This is undocumented in Adobe's docs.

Note that this bug previously did not cause parsing to fail, because our
library ignores unrecognized ALI blocks. However, it _may_ have
prevented recognizing valid ALI blocks that come after a 'cinf' block.

packages/psd/src/sections/LayerAndMaskInformation/AdditionalLayerInfo/index.ts

@@ -96,6 +96,7 @@ function getAliLengthFieldSizeType(
       case "FEid":
       case "FXid":
       case "PxSD":
+      case "cinf": // Undocumented in Adobe's docs
         return "u64";
     }
   }