Fix crash in stb_vorbis.c

(cherry picked from commit d259094c3a)

thirdparty/README.md

@@ -378,6 +378,7 @@ Collection of single-file libraries used in Godot components.
   * Upstream: https://github.com/nothings/stb
   * Version: 1.19
   * License: Public Domain (Unlicense) or MIT
+  * Modifications: `f->temp_offset += (sz+3)&~3;` changed to `f->temp_offset += (sz+7)&~7;` (needed until fixed upstream)
 
 
 ## nanosvg

thirdparty/misc/stb_vorbis.c

@@ -961,7 +961,7 @@ static void *setup_temp_malloc(vorb *f, int sz)
 static void setup_temp_free(vorb *f, void *p, int sz)
 {
    if (f->alloc.alloc_buffer) {
-      f->temp_offset += (sz+3)&~3;
+      f->temp_offset += (sz+7)&~7;
       return;
    }
    free(p);