librsvg: Update version from 2.40.13 to 2.47.3

Eye of GNOME (eog) 3.38.0 requires at least version 2.44.0, so update.

    Dependency librsvg-2.0 found: NO found 2.40.13 but need: '>= 2.44.0'
    Found CMake: /usr/bin/cmake (3.16.2)
    Run-time dependency librsvg-2.0 found: NO (tried cmake)

    ../source/meson.build:209:2: ERROR: Invalid version of dependency, need 'librsvg-2.0' ['>= 2.44.0'] found '2.40.13'.

Version 2.44.2 fails to build with Rust 1.41.0, and since version
2.48.x, Harfbuzz 2.x is required, but MarIuX is still at 1.4.6. So,
choose version 2.47.3.

librsvg.be0

@@ -1,6 +1,6 @@
 #!/bin/env beesh
 
-# BEE_VERSION librsvg-2.40.13-0
+# BEE_VERSION librsvg-2.47.3-0
 
 SRCURL[0]="https://download.gnome.org/sources/librsvg/${PKGVERSION[2]}/librsvg-${PKGVERSION}.tar.xz"