deprecate php 8.0

src/BuildProcess/ValidateManifest.php

@@ -42,16 +42,10 @@ protected function warnAboutDeprecations()
             'php-7.4:al2',
             'php-7.4:imagick',
             'php-8.0',
+            'php-8.0:al2',
         ])) {
             Helpers::warn(
-                'The runtimes "php-7.3", "php-7.4", "php-7.4:al2", "php-7.4:imagick", and "php-8.0" are deprecated and will no longer be supported or receiving any updates.'
-                .' For a full list of supported runtimes, please see: https://docs.vapor.build/1.0/projects/environments.html#runtime'
-            );
-        }
-
-        if (Manifest::runtime($this->environment) === 'php-8.0:al2') {
-            Helpers::warn(
-                'The runtime "php-8.0:al2" is now deprecated and it is no longer possible to deploy new environments using this runtime. Support will be removed for existing runtimes on February 26, 2024.'
+                'The runtimes "php-7.3", "php-7.4", "php-7.4:al2", "php-7.4:imagick", "php-8.0", and "php-8.0:al2" are deprecated and will no longer be supported or receiving any updates.'
                 .' For a full list of supported runtimes, please see: https://docs.vapor.build/1.0/projects/environments.html#runtime'
             );
         }