CLSA-2026-1786552804 ImageMagick: Fix of 2 CVEs

CVE-2026-61868: relinquish scanline and destroy chromaimage on blob open failure in ReadYUVImage coders/yuv.c to fix a memory leak - CVE-2026-61869: destroy quantuminfo before throwing on pixel and colormap allocation failure in WriteMIFFImage coders/miff.c to fix a memory leak...

imagemagick/encoder_miff_fuzzer: Use-of-uninitialized-value in WriteMIFFImage

Project: https://github.com/imagemagick/imagemagick.git Detailed report: https://oss-fuzz.com/testcase?key=5728395053760512 Project: imagemagick Fuzzer: libFuzzerimagemagickencodermifffuzzer Fuzz target binary: encodermifffuzzer Job Type: libfuzzermsanimagemagick Platform Id: linux Crash Type:...