Fixed some PHP deprecations for PHP 8

Author: ezimuel

composer.json

@@ -48,7 +48,10 @@
     }
   },
   "config": {
-    "sort-packages": true
+    "sort-packages": true,
+    "allow-plugins": {
+      "php-http/discovery": true
+    }
   },
   "scripts": {
     "phpcs": [

src/Elasticsearch/Helper/Iterators/SearchHitIterator.php

@@ -69,6 +69,7 @@ public function __construct(SearchResponseIterator $search_responses)
      * @return void
      * @see    Iterator::rewind()
      */
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         $this->current_key = 0;
@@ -96,6 +97,7 @@ public function rewind()
      * @return void
      * @see    Iterator::next()
      */
+    #[\ReturnTypeWillChange]
     public function next()
     {
         $this->current_key++;
@@ -115,6 +117,7 @@ public function next()
      * @return bool
      * @see    Iterator::valid()
      */
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         return is_array($this->current_hit_data);
@@ -126,6 +129,7 @@ public function valid()
      * @return array
      * @see    Iterator::current()
      */
+    #[\ReturnTypeWillChange]
     public function current()
     {
         return $this->current_hit_data;
@@ -137,6 +141,7 @@ public function current()
      * @return int
      * @see    Iterator::key()
      */
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return $this->current_key;
@@ -161,6 +166,7 @@ private function readPageData()
     /**
      * {@inheritDoc}
      */
+    #[\ReturnTypeWillChange]
     public function count()
     {
         if ($this->count === null) {

src/Elasticsearch/Helper/Iterators/SearchResponseIterator.php

@@ -123,6 +123,7 @@ private function clearScroll()
      * @return void
      * @see    Iterator::rewind()
      */
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         $this->clearScroll();
@@ -137,6 +138,7 @@ public function rewind()
      * @return void
      * @see    Iterator::next()
      */
+    #[\ReturnTypeWillChange]
     public function next()
     {
         $this->current_scrolled_response = $this->client->scroll([
@@ -153,6 +155,7 @@ public function next()
      * @return bool
      * @see    Iterator::valid()
      */
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         return isset($this->current_scrolled_response['hits']['hits'][0]);
@@ -164,6 +167,7 @@ public function valid()
      * @return array
      * @see    Iterator::current()
      */
+    #[\ReturnTypeWillChange]
     public function current()
     {
         return $this->current_scrolled_response;
@@ -175,6 +179,7 @@ public function current()
      * @return int
      * @see    Iterator::key()
      */
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return $this->current_key;

tests/Elasticsearch/Tests/Helper/Iterators/SearchHitIteratorTest.php

@@ -26,6 +26,7 @@
  * Class SearchResponseIteratorTest
  *
  */
+#[\AllowDynamicProperties]
 class SearchHitIteratorTest extends \PHPUnit\Framework\TestCase
 {
 

tests/Elasticsearch/Tests/TransportTest.php

@@ -29,6 +29,7 @@
 use Psr\Log\LoggerInterface;
 use React\Promise\Deferred;
 
+#[\AllowDynamicProperties]
 class TransportTest extends TestCase
 {
     public function setUp(): void