style: enable InvalidJavadocPosition in checkstyle (#5237)

enable style InvalidJavadocPosition

Co-authored-by: Samuel Facchinello <samuel.facchinello@piksel.com>

src/main/java/com/thealgorithms/datastructures/trees/CeilInBinarySearchTree.java

@@ -18,8 +18,6 @@ import com.thealgorithms.datastructures.trees.BinaryTree.Node;
  *
  * Ex.2. [30,20,40,10,25,35,50] represents level order traversal of a binary
  * search tree. Find ceil for 52 Answer: -1
- */
-/**
  *
  * Solution 1: Brute Force Solution: Do an inorder traversal and save result
  * into an array. Iterate over the array to get an element equal to or greater

src/main/java/com/thealgorithms/datastructures/trees/TrieImp.java

@@ -1,12 +1,12 @@
 package com.thealgorithms.datastructures.trees;
 
+import java.util.Scanner;
+
 /**
  * Trie Data structure implementation without any libraries
  *
- * @author Dheeraj Kumar Barnwal (https://github.com/dheeraj92)
+ * @author <a href="https://github.com/dheeraj92">Dheeraj Kumar Barnwal</a>
  */
-import java.util.Scanner;
-
 public class TrieImp {
 
     public class TrieNode {