correction

src/main/java/fr/univamu/sorting/InsertionSort.java

@@ -19,7 +19,7 @@ public class InsertionSort<T extends Comparable<T>> implements Sorter<T> {
             T key = sortable.get(i);
             int j = i - 1;
 
-            while (j >= 0 && sortable.compare(j, key) > 0) {
+            while (j >= 0 && sortable.compare(j, (Integer) key) > 0) {
                 sortable.Swap(j + 1, j);
                 j = j - 1;
             }