libpng security update

2:1.6.34-9 - CVE-2025-64720: buffer overflow RHEL-131452 - CVE-2025-65018: heap buffer overflow RHEL-131465 - CVE-2025-66293: out-of-bounds read in pngimagereadcomposite RHEL-133226 2:1.6.34-8 - Remove redundant fix for CVE-2017-12652 2:1.6.34-7 - Add upstream test suite and enable it in gating...