Revert "use libspatialaudio-cmake4 branch"

This reverts commit f60e931.

Author: ddennedy

scripts/build-shotcut-msys2.sh

@@ -37,8 +37,8 @@ FFMPEG_ADDITIONAL_OPTIONS=
 MLT_HEAD=1
 MLT_REVISION=
 LOG_COLORS=0
-SHOTCUT_HEAD=0
-SHOTCUT_REVISION="origin/libspatialaudio-cmake4"
+SHOTCUT_HEAD=1
+SHOTCUT_REVISION=
 SHOTCUT_VERSION=$(date '+%y.%m.%d')
 ENABLE_BIGSH0T=1
 BIGSH0T_HEAD=0