Security update for libpng16
This update for libpng16 fixes the following issues: - CVE-2025-65018: Fixed heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read` (bsc#1254160) - CVE-2025-66293: Fixed LIBPNG out-of-bounds read in `png_image_read_composite` (bsc#1254480) - CVE-2025-64506: Fixed heap buffer over-read in `png_write_image_8bit` with 8-bit input and `convert_to_8bit` enabled (bsc#1254158) - CVE-2025-64720: Fixed buffer overflow in `png_image_read_composite` via incorrect palette premultiplication (bsc#1254159) - CVE-2025-64505: Fixed heap buffer over-read in `png_do_quantize` via malformed palette index (bsc#1254157)
- Update to 1.6.34-150000.3.12.1