DSOAL r552 - Check the extension when returning the AL format

DSOAL r552@fc79b100 c++-rewrite - Check the extension when returning the AL format [2024-07-08 12:58:27 +0000]
OpenAL Soft r9281@0134982b master - Add EXCLUDE_FROM_ALL property when adding Oboe from source (#1014) [2024-07-07 11:38:30 +0000]
Build log: https://github.com/ThreeDeeJay/dsoal/actions/runs/10753709126/job/29823455710

Full Changelog: r550...r552