OSV-2024-471 Use-of-uninitialized-value in vpx_codec_peek_stream_info

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68912 Crash type: Use-of-uninitialized-value Crash state: vpxcodecpeekstreaminfo vpxdecfuzzer.cc vpxdecfuzzer.cc...