convert str to float before calling number_format ccas in ccastransaction mailer

src/Command/SendCcasTransactionsExportToPrestatairesCommand.php

@@ -156,8 +156,8 @@ class SendCcasTransactionsExportToPrestatairesCommand extends Command
             //Write transaction line
             $this->fputcsvSeparatedBySemicolon($file, [
                 $row['anonymous_token'],
-                number_format($row['montant'], 2),
-                $this->currencySpellout($nf, $row['montant']),
+                number_format(floatval($row['montant']), 2),
+                $this->currencySpellout($nf, floatval($row['montant'])),
                 $row['created_at'],
             ]);
             $clientTotal += $row['montant'];