[BUG] Why php 8.1.2 when installed 8.3?

[ArtemSites]

[Guslbr]

Happens here too, no matter which PHP version I pick, php -v and phpinfo() from a script always tell me it's 8.1.20. I tried running dev_build_container.sh as well (the README doesn't provide any information on this shell script), but nothing changes.