CTAN update: luamplib

Dohyun Kim submitted an update to the
                luamplib
package.
Version:  2.26.3
License:  gpl2
Summary description:  Use LuaTeX’s built-in MetaPost interpreter
Announcement text:
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 * color expressions of l3color are supported as well.
   But they are regarded as xcolor's expressions if xcolor package
   is loaded.
 * support pdfmanagement's opacity and shading management.
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The package’s Catalogue entry can be viewed at
   https://ctan.org/pkg/luamplib
The package’s files themselves can be inspected at
   https://mirrors.ctan.org/macros/luatex/generic/luamplib/
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   Thanks for the upload.
     For the CTAN Team
    Petra Rübe-Pugliese
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