[MacPorts] #43331: librsvg: update to version 2.40.2

[MacPorts]

#43331: librsvg: update to version 2.40.2
----------------------+-----------------------
 Reporter:  devans@…  |      Owner:  pixilla@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  haspatch  |       Port:  librsvg
----------------------+-----------------------
 Attached patch updates librsvg to current version 2.40.2 removing upstream
 patch which is now included in tarball.

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Ticket URL: <https://trac.macports.org/ticket/43331>
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