Update phpdoc

Author: GitHub Actions

docs/classes/BitPaySDK-Client-SubscriptionClient.html

@@ -213,6 +213,12 @@ <h4 id="toc-constants">
         &nbsp;= &quot;2.0.0&quot;                            </span>
 </dt>
 
+            <dt class="phpdocumentor-table-of-contents__entry -constant -public">
+    <a class="" href="classes/BitPaySDK-Env.html#constant_BITPAY_DATETIME_FORMAT">BITPAY_DATETIME_FORMAT</a>
+    <span>
+        &nbsp;= &#039;Y-m-d\TH:i:s\Z&#039;                            </span>
+</dt>
+
             <dt class="phpdocumentor-table-of-contents__entry -constant -public">
     <a class="" href="classes/BitPaySDK-Env.html#constant_BITPAY_PLUGIN_INFO">BITPAY_PLUGIN_INFO</a>
     <span>
@@ -350,6 +356,37 @@ <h4 class="phpdocumentor-element__name" id="constant_BITPAY_API_VERSION">
 
 
 
+</article>
+                    <article class="phpdocumentor-element -constant -public ">
+    <h4 class="phpdocumentor-element__name" id="constant_BITPAY_DATETIME_FORMAT">
+        BITPAY_DATETIME_FORMAT
+        <a href="classes/BitPaySDK-Env.html#constant_BITPAY_DATETIME_FORMAT" class="headerlink"><i class="fas fa-link"></i></a>
+
+    </h4>
+
+    <aside class="phpdocumentor-element-found-in">
+    <abbr class="phpdocumentor-element-found-in__file" title="src/BitPaySDK/Env.php"><a href="files/src-bitpaysdk-env.html"><abbr title="src/BitPaySDK/Env.php">Env.php</abbr></a></abbr>
+    :
+    <span class="phpdocumentor-element-found-in__line">23</span>
+
+    </aside>
+
+    
+    
+    <code class="phpdocumentor-signature phpdocumentor-code ">
+    <span class="phpdocumentor-signature__visibility">public</span>
+        <span class="phpdocumentor-signature__type">mixed</span>
+    <span class="phpdocumentor-signature__name">BITPAY_DATETIME_FORMAT</span>
+    = <span class="phpdocumentor-signature__default-value">&#039;Y-m-d\TH:i:s\Z&#039;</span>
+</code>
+
+
+    
+    
+    
+
+    
+
 </article>
                     <article class="phpdocumentor-element -constant -public ">
     <h4 class="phpdocumentor-element__name" id="constant_BITPAY_PLUGIN_INFO">
@@ -625,6 +662,7 @@ <h4 class="phpdocumentor-element__name" id="constant_TEST_URL">
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_BITPAY_API_FRAME">BITPAY_API_FRAME</a></li>
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_BITPAY_API_FRAME_VERSION">BITPAY_API_FRAME_VERSION</a></li>
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_BITPAY_API_VERSION">BITPAY_API_VERSION</a></li>
+                                                    <li class=""><a href="classes/BitPaySDK-Env.html#constant_BITPAY_DATETIME_FORMAT">BITPAY_DATETIME_FORMAT</a></li>
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_BITPAY_PLUGIN_INFO">BITPAY_PLUGIN_INFO</a></li>
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_PROD">PROD</a></li>
                                                     <li class=""><a href="classes/BitPaySDK-Env.html#constant_PROD_URL">PROD_URL</a></li>