chore: fix typos in src/main/java/com/thealgorithms/datastructures/heaps/FibonacciHeap.java (#7027)

Fix typos in src/main/java/com/thealgorithms/datastructures/heaps/FibonacciHeap.java

Author: Lê Nam Khánh

src/main/java/com/thealgorithms/datastructures/heaps/FibonacciHeap.java

@@ -387,7 +387,7 @@ public class HeapNode {
         private HeapNode parent;
 
         /*
-         * a constructor for a heapNode withe key @param (key)
+         * a constructor for a heapNode with key @param (key)
          * prev == next == this
          * parent == child == null
          */