jpegoptim: update to 1.5.6

mingw-w64-jpegoptim/PKGBUILD

@@ -3,21 +3,24 @@
 _realname=jpegoptim
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
-pkgver=1.5.5
+pkgver=1.5.6
 pkgrel=1
 pkgdesc="Utility to optimize jpeg files (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw64' 'ucrt64' 'clang64' 'clangarm64')
 url="https://github.com/tjko/jpegoptim/"
 msys2_references=(
+  "archlinux: jpegoptim"
   "cpe: cpe:/a:jpegoptim_project:jpegoptim"
+  "cygwin: jpegoptim"
+  "gentoo: media-gfx/jpegoptim"
 )
 license=('spdx:GPL-3.0-or-later')
 depends=("${MINGW_PACKAGE_PREFIX}-libjpeg-turbo")
 makedepends=("${MINGW_PACKAGE_PREFIX}-autotools"
              "${MINGW_PACKAGE_PREFIX}-cc")
 source=(https://github.com/tjko/jpegoptim/archive/v${pkgver}/${_realname}-${pkgver}.tar.gz)
-sha256sums=('90a309d1c092de358bb411d702281ac3039b489d03adb0bc3c4ef04cf0067d38')
+sha256sums=('661a808dfffa933d78c6beb47a2937d572b9f03e94cbaaab3d4c0d72f410e9be')
 validpgpkeys=('9168CD7A2F0AAB0679D09BBA9D08A80CED908D6A') # Timo Kokkonen <tjko@iki.fi>
 
 build() {