Adding CGI directives to vhost causes 404 / Not found error - php

Question

I am trying to run two php versions with apache. One (PHP7) is setup with mod and the other (PHP8) I am trying to set up with CGI. I am currently testing both work using the different vhosts for https and http. I have the following virtual hosts in my httpd-vhosts.conf file:
<VirtualHost 0.0.0.0:80>
SetEnv PHPRC "C:/Program Files/PHP/php-8.1.12/"
ScriptAlias /php8112/ "C:/Program Files/PHP/php-8.1.12/"
Action application/x-httpd-8112 "/php8112/php.exe"
AddType application/x-httpd-8112 .php
<Directory "C:/Program Files/PHP/php-8.1.12/">
<Files "php.exe">
Require all granted
</Files>
</Directory>
DocumentRoot "D:/Test/Site/public"
ServerName test.local
CustomLog "C:/Users/me/Logs/test_access.log" combined
ErrorLog "C:/Users/me/Logs/test_error.log"
</VirtualHost>
<VirtualHost 0.0.0.0:443>
DocumentRoot "D:/Test/Site/public"
ServerName test.local
SSLEngine on
SSLCertificateFile "C:/Program Files/Apache24/conf/server.cert"
SSLCertificateKeyFile "C:/Program Files/Apache24/conf/server.key"
</VirtualHost>
and a simple index.php in D:/Test/Site/public:
<?php
phpinfo();
?>
Accessing via HTTPS works and correctly gives me the PHP Info page. Accessing via HTTP gives me a 404 Not Found error, however. Why would this be?
I have tried reordering the directives and adding a directory directive for the DocumentRoot directive. Neither seemed to make a difference.
I am using Apache 2.4 on Windows 10