Updated leptonica packages fix security vulnerabilities

Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c (CVE-2020-36277). Leptonica before 1.80.0 allows a heap-based buffer over-read in findNextBorderPixel in ccbord.c (CVE-2020-36278). Leptonica before 1.80.0 allows a heap-based buffer over-read in rasteropGeneralLow, related to adaptmap_reg.c and adaptmap.c (CVE-2020-36279). Leptonica before 1.80.0 allows a heap-based buffer over-read in pixReadFromTiffStream, related to tiffio.c (CVE-2020-36280). Leptonica before 1.80.0 allows a heap-based buffer over-read in pixFewColorsOctcubeQuantMixed in colorquant1.c (CVE-2020-36281).