fix: do not clear the diff_purge.txt

Author: jdaugherty

etc/bin/verify-reproducible.sh

@@ -106,6 +106,7 @@ if [ -s diff.txt ]; then
       fi
   fi
 
+  : > diff_purged.txt  # Ensure the file exists and is empty
   while IFS= read -r jar_file; do
       echo "Checking jar ${jar_file}..."
 
@@ -140,7 +141,6 @@ if [ -s diff.txt ]; then
       fi
 
   done < diff.txt
-  : > diff_purged.txt  # Ensure the file exists and is empty
   mv diff_purged.txt diff.txt
   rm -rf firstArtifact secondArtifact firstSource secondSource || true