Added composer patches

Author: sudiptpa

composer.json

@@ -1,45 +1,51 @@
 {
-    "name": "sudiptpa/omnipay-nabtransact",
-    "type": "library",
-    "description": "National Australia Bank (NAB) Transact driver for the Omnipay payment processing library.",
-    "keywords": [
-        "gateway",
-        "merchant",
-        "omnipay",
-        "pay",
-        "payment",
-        "nabtransact"
-    ],
-    "homepage": "https://github.com/sudiptpa/nabtransact",
-    "license": "MIT",
-    "authors": [
-        {
-            "name": "Sujip Thapa",
-            "email": "sudiptpa@gmail.com"
-        }
-    ],
-    "autoload": {
-        "psr-4": {
-            "Omnipay\\NABTransact\\" : "src/"
-        }
-    },
-    "require": {
-        "omnipay/common": "^3"
-    },
-    "require-dev": {
-        "omnipay/tests": "^3",
-        "squizlabs/php_codesniffer": "^3",
-        "phpro/grumphp": "^0.14.0"
-    },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "3.0.x-dev"
-        }
-    },
-    "scripts": {
-        "test": "vendor/bin/phpunit",
-        "check-style": "phpcs -p --standard=PSR2 src/",
-        "fix-style": "phpcbf -p --standard=PSR2 src/"
+   "name":"sudiptpa/omnipay-nabtransact",
+   "type":"library",
+   "description":"National Australia Bank (NAB) Transact driver for the Omnipay payment processing library.",
+   "keywords":[
+      "gateway",
+      "merchant",
+      "omnipay",
+      "pay",
+      "payment",
+      "nabtransact"
+   ],
+   "homepage":"https://github.com/sudiptpa/nabtransact",
+   "license":"MIT",
+   "authors":[
+      {
+         "name":"Sujip Thapa",
+         "email":"sudiptpa@gmail.com"
+      }
+   ],
+   "autoload":{
+      "psr-4":{
+         "Omnipay\\NABTransact\\":"src/"
+      }
    },
-   "prefer-stable": true
+   "require":{
+      "omnipay/common":"^3",
+      "cweagans/composer-patches":"^1.6"
+   },
+   "require-dev":{
+      "omnipay/tests":"^3",
+      "squizlabs/php_codesniffer":"^3",
+      "phpro/grumphp":"^0.14.0"
+   },
+   "extra":{
+      "branch-alias":{
+         "dev-master":"3.0.x-dev"
+      },
+      "patches":{
+         "guzzle/guzzle":{
+            "Update CA":"patches/guzzle-guzzle-update-cacert.patch"
+         }
+      }
+   },
+   "scripts":{
+      "test":"vendor/bin/phpunit",
+      "check-style":"phpcs -p --standard=PSR2 src/",
+      "fix-style":"phpcbf -p --standard=PSR2 src/"
+   },
+   "prefer-stable":true
 }