temporarily hammer PHP 8.3 in randomized tests

Author: morrisonlevi

Diff for: tests/randomized/config/platforms.php

@@ -7,6 +7,7 @@
     'centos7' => [
         'php' => [
             '8.3',
+/*
             '8.2',
             '8.1',
             '8.0',
@@ -15,15 +16,19 @@
             '7.2',
             '7.1',
             '7.0',
+ */
         ],
     ],
     'buster' => [
         'php' => [
             '8.3',
+/*
             '8.2',
             '8.1',
             '8.0',
         ] + (php_uname("m") == "arm64" ? [-1 => '7.4'] : []), // opcache broken on 7.4 amd64
+ */
+        ]
     ],
 ]);