Allow usage of PHP 8.3

[Timo Webler]

reelworx/rx-shariff v15.0.7 requires php >=8.0 <8.3 -> your php version (8.3.3) does not satisfy that requirement.

PHP 8.3 should be allowed

[Timo Webler]

Pull-Request: https://bitbucket.org/reelworx/rx_shariff/pull-requests/18

[Markus Klein]

[TASK] Allow PHP 8.3

Fixes: #33

→ <<cset 75e33c1f155d>>

[Markus Klein]

[TASK] Allow PHP 8.3 in emconf too

Fixes: #33

→ <<cset 6aaf0f079f26>>