libwebp: Fix CVE-2023-4863

libwebp: Fix CVE-2023-4863

Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187
allowed a remote attacker to perform an out of bounds memory write via
a crafted HTML page.

Removed CVE-2023-5129.patch as CVE-2023-5129 is duplicate of CVE-2023-4863.

CVE: CVE-2023-4863

References:
https://nvd.nist.gov/vuln/detail/CVE-2023-4863
https://security-tracker.debian.org/tracker/CVE-2023-4863
https://bugzilla.redhat.com/show_bug.cgi?id=2238431#c12

Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>