audio/libsndfile: Fix CVE-2022-33065

Multiple signed integers overflow in function au_read_header in
src/au.c and in functions mat4_open and mat4_read_header in
src/mat4.c in Libsndfile, allows an attacker to cause Denial of Service
or other unspecified impacts.

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2022-33065