Add FrankenPHP support

[jaydrogers]

Franken PHP

🚀 What this PR does

• Adds FrankenPHP be offered as a variation
• Allow the PHP minor version to be selected with FrankenPHP
• Allow the "autorun" scripts and other custom init scripts to run before bringing up FrankenPHP
• Allow the PHP_ environment variables from other Server Side Up images to work with FrankenPHP

Create documentation

• Laravel + FrankenPHP
• Customizing start up with FrankenPHP
• Installing custom PHP extensions with FrankenPHP

Checklist

• Ensure SSL_MODE works as other variations
• Ensure custom extensions can be installed like other variations

[Sammyjo20]

This would be super cool to have! Great work on this so far!

[cloudflare-workers-and-pages]

Deploying serversideup-php with    Cloudflare Pages

Latest commit:	73b4031
Status:	✅  Deploy successful!
Preview URL:	https://9e48ab3c.serversideup-php.pages.dev
Branch Preview URL:	https://280-create-a-frankenphp-vari.serversideup-php.pages.dev

View logs

[GunniBusch]

This would really be a nice addition..

[thinkstylestudio]

This will be a wonderful addition!

[mihai-burduselu-ptt]

This would be a great feature! 🚀
Any updates here?

[jaydrogers]

Not sure how I missed your message @mihai-burduselu-ptt.

I am getting v3.4 updates out the door for the last major optimizations for fpm-nginx. Then it's FrankenPHP time 😎

[hstoenescu]

This is a great addition to serversideup. Any updates regarding frankenPHP?

[hookenz]

I'd like to see FrankenPHP added too.

[jaydrogers]

Thanks for your patience, all! I'm looking for the future of PHP and I really hope FrankenPHP is it.

I've been very busy with Spin and once I get this big release of Spin v3 out the door, then I will be swinging to this.

Exploring FrankenPHP is very important to me and I will definitely be getting this accomplished 💯