graphics/ImageMagick7: update to 7.1.0.30

Changes:
 *  generalize multispectral support 914c2e8
 *  support 6 channel cmyka + metachannel images fa0e7bf
 *  TXT format supports multispectral images a107b94
 *  generalize multispectral support 101e955
 *  Lab colorspace survives a round-trip 6eb56b8
 *  eliminate Coverity defects 3a256ce
 *  limit trim to a minimum size 32fa9ae
 *  fix Coverity defects c8ca79e
 *  eliminate Coverity defects a564acf
 *  bypass FFT compare when mask is defined c5b8a8e
 *  Use -define connected-components:sort=area | width | height | x | y
    to sort the verbose connected components objects. By default, the
    objects are listed in decreasing area. Add -define
    connected-components:sort-order=increasing | decreasing to specify
    the sort order. 41d9d59
 *  #5028 ebea37d
 *  forgot to include "static.h" header 93b59d6
 *  read HEIF from file rather than memory 7ef309b
 *  eliminate arbitrary limit on CMS descriptions bff8264
 *  pending release 196b8b0
 *  respect the mask when computing the FFT similarity 695acbc
 *  prep next release ff88d9d
 *  eliminate Coverity defects 34a91f0
 *  #4861 347b828
 *  do not attempt to write a null image list (thanks to Vinay Rohila) 716496e
 *  revert 001f2d0
 *  Use different naming convention. 9661fa0
 *  check to see if ICC property exists before its created 8f8db6b
 *  eliminate Coverity defects 6b15959
 *  Improved freetype error reporting (#4997). e18b283
 *  do not permit setting read-only properties (e.g. exif:*) e3c4d3f
 *  Improved set_file_timestamp on Windows. 59d1c9a
 *  evolve multispectral image support e31b13c
 *  add multispectral support to the MIFF format 8fbf695
 *  do not set ICC properties unless the value is non-null 052cb94
 *  #5008 7e36bce
 *  quiet compiler warnings db6bfc4
 *  eliminate Coverity defect 0ef3f01
 *  streaming interface must be allocated on the heap dc5116f
 *  eliminate Coverity defects 781a886
 *  future: throw an exception if type cache cannot be acquired 0903518
 *  eliminate Coverity defects de80673
 *  Added missing version check. 5d003d9
 *  revert 99d530c
 *  Fixed build errors. 4f3d080
 *  missing case for -read-mask option 5ecbd67
 *  check for empty string not required 017d17f
 *  revert 4433872
 *  utilitze fstat() blocksize to set stream buffer size ff0734c
 *  eliminate Coverity defect 62f3f3a
 *  eliminate Coverity defects 9ee5a2e
 *  #5034 940b133
 *  Moved variable definition. a92f1c0
 *  Code style changes. 13b4e4a
 *  prevent double free in Freetype streaming interface f12746c
 *  revert daa64a9
 *  ... 91c6c53
 *  eliminate compiler warning 89527f6
 *  eliminate compiler warning f51ac93
 *  eliminate compiler exception 469219c
 *  Restored check that was added in #3137. 9643c4a
 *  Use sizeof instead. 769b275
 *  eliminate leak in Freetype streaming interface e0a9b4d
 *  #5010 41019b0d
 *  HEIC container must be a seekable file on disk 19e645e
 *  release 8e8a7ce
 *  Always use IsGrayColorspace. c154ffe
 *  fix fill-opacity special case where the fill color alpha is fully transparent 1835ba8
 *  eliminate Coverity defects a744181
 *  eliminate compiler warning 3366885
 *  #5027 6516558
 *  alpha_trait should be set, otherwise the alpha value will not be used. 90f788f
 *  longitude requires minor version 20 46df306
 *  Reverse loop to "fix" compiler optimization bug on arm64 Linux. 1350b58
 *  Update SECURITY.md 6708d4f
 *  eliminate compiler warning 4576d73
 *  cast to eliminate possible data loss error 0ae1a49
 *  fix unknown size compiler exception 8f3936f
 *  Whitespace. f5a909d
 *  Corrected multiplication. 5c99efd
 *  Corrected check. e61eaf4
 *  Removed unused setter. a41d6d1
 *  fix memory leak in Freetype streaming interface d8c2b0c
 *  mention multistrectral imagery d2b6318