Updated EOL date

Author: jeff-matthews

src/_includes/layout/page-header.html

@@ -36,7 +36,7 @@
 
   {% if page.url contains "guides/v2.3/" %}
   <div class="bs-callout-warning">
-    PHP 7.3 reached end of support in December 2021 and {{site.data.var.ee}} 2.3.x reaches end of support in April 2022. You may want to consider planning your upgrade now to {{site.data.var.ee}} 2.4.x and PHP 7.4.x to help maintain PCI compliance.
+    PHP 7.3 reached end of support in December 2021 and {{site.data.var.ee}} 2.3.x reaches end of support in September 2022. You may want to consider planning your upgrade now to {{site.data.var.ee}} 2.4.x and PHP 7.4.x to help maintain PCI compliance.
   </div>
   {% endif %}
 

src/guides/v2.3/index.html

@@ -3,7 +3,7 @@
 ---
 
 <section class="home-features">
-  <div class="bs-callout-warning">PHP 7.3 reached end of support in December 2021 and {{site.data.var.ee}} 2.3.x reaches end of support in April 2022. You may want to consider planning your upgrade now to {{site.data.var.ee}} 2.4.x and PHP 7.4.x to help maintain PCI compliance.</div>
+  <div class="bs-callout-warning">PHP 7.3 reached end of support in December 2021 and {{site.data.var.ee}} 2.3.x reaches end of support in September 2022. You may want to consider planning your upgrade now to {{site.data.var.ee}} 2.4.x and PHP 7.4.x to help maintain PCI compliance.</div>
   <div class="container">
 
     <div class="feature">