update vendored libmpg123

sezero · sezero · commit f486b4caee97 · 2025-09-10T18:25:50.000+03:00
diff --git a/external/mpg123 b/external/mpg123
@@ -1 +1 @@
-Subproject commit e469105b399e2996a473835e4cf25aea596ee58a
+Subproject commit 7c2c0d1e28b1844292bd6db313d8893d17722a82
