chore: suppress rawtypes in selected classes (#6261)

src/main/java/com/thealgorithms/datastructures/hashmap/hashing/GenericHashMapUsingArray.java

@@ -23,6 +23,7 @@ import java.util.LinkedList;
  * @param <K> the type of keys maintained by this hash map
  * @param <V> the type of mapped values
  */
+@SuppressWarnings("rawtypes")
 public class GenericHashMapUsingArray<K, V> {
 
     private int size; // Total number of key-value pairs

src/main/java/com/thealgorithms/datastructures/hashmap/hashing/HashMap.java

@@ -8,6 +8,7 @@ package com.thealgorithms.datastructures.hashmap.hashing;
  * @param <K> the type of keys maintained by this map
  * @param <V> the type of mapped values
  */
+@SuppressWarnings("rawtypes")
 public class HashMap<K, V> {
     private final int hashSize;
     private final LinkedList<K, V>[] buckets;

src/main/java/com/thealgorithms/datastructures/hashmap/hashing/LinearProbingHashMap.java

@@ -34,6 +34,7 @@ import java.util.ArrayList;
  * @param <Key> the type of keys maintained by this map
  * @param <Value> the type of mapped values
  */
+@SuppressWarnings("rawtypes")
 public class LinearProbingHashMap<Key extends Comparable<Key>, Value> extends Map<Key, Value> {
     private int hsize; // size of the hash table
     private Key[] keys; // array to store keys