Increase max_length of image_md5_hash field to 64 in SeriesImage and LongSeriesImage models

generic/models.py

@@ -279,7 +279,7 @@ class SeriesImageBase(models.Model):
     # The first is a md5 hash of the pixel array data
     # this is used because I can't get the direct pixel data to match from cornerstone
     # (and struggle to get blake3 working in the browser)
-    image_md5_hash = models.CharField(max_length=32, null=True, blank=True)
+    image_md5_hash = models.CharField(max_length=64, null=True, blank=True)
 
     # The second is a blake3 hash of the direct pixel data
     # This is much faster when using pydicom