Update OpenSearch SDK to version 2.x (#3)

* Update composer.json

* Updates readme to reflect correct supported version

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [7.4, 8.0, 8.1]
+        php: [7.4, 8.0, 8.1, 8.2]
         include:
           - php: 7.4
             testbench: 5.0
@@ -26,6 +26,10 @@ jobs:
           - php: 8.1
             testbench: 7.0
             phpunit: 9.5
+
+          - php: 8.2
+            testbench: 8.5
+            phpunit: 10.1
     steps:
       - name: Checkout code
         uses: actions/checkout@v2

README.md

@@ -5,7 +5,7 @@ The official PHP OpenSearch client integrated with Laravel.
 ## Contents
 
 * [Compatibility](#compatibility)
-* [Installation](#installation) 
+* [Installation](#installation)
 * [Configuration](#configuration)
 * [Usage](#usage)
 
@@ -14,7 +14,7 @@ The official PHP OpenSearch client integrated with Laravel.
 The current version of OpenSearch Client has been tested with the following configuration:
 
 * PHP 7.4-8.x
-* Opensearch 1.x 
+* Opensearch 2.x
 
 ## Installation
 

composer.json

@@ -30,7 +30,7 @@
     },
     "require": {
         "php": "^7.4 || ^8.0",
-        "opensearch-project/opensearch-php": "^1.0"
+        "opensearch-project/opensearch-php": "^2.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",