Fix a floating point crash in the progress bar code if the update

frequency is too small. Setting this to a minimum of 10.

Author: Christopher Woods

src/metawards/utils/_build_play_matrix.pyx

@@ -188,6 +188,9 @@ def build_play_matrix(network: Network,
         nlines = len(lines)
         update_freq = int(nlines / 1000)
 
+        if update_freq < 10:
+            update_freq = 10
+
         with Console.progress() as progress:
             task = progress.add_task("Parsing contents", total=nlines)