comparators: try matching for MozillaZipFile before ZipFile

Fixes a test failure in Alpine Linux.

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

diffoscope/comparators/__init__.py

@@ -85,8 +85,8 @@ class ComparatorManager(object):
         ('odt.OdtFile',),
         ('ocaml.OcamlInterfaceFile',),
         ('docx.DocxFile',),
-        ('zip.ZipFile',),
         ('zip.MozillaZipFile',),
+        ('zip.ZipFile',),
         ('image.JPEGImageFile',),
         ('image.ICOImageFile',),
         ('cbfs.CbfsFile',),