sudo: Update to 1.8.10.

This is a minor update to the latest stable release.

Fixes #10518.
libpng: Move libpng-compat package into own build file.

Fixes #10521.
mpfr: Move mpfr-compat package into own build file.

Update the mpfr main package to 3.1.2 to allow build with gmp 6.0.0 or higher.

The compat-mpfr package cannot be build with gmp series 6 or higher, so there is a
build dependecy below that version.

Fixes #10522.
pcre: Move pcre-compat package into own build file.

Fixes #10523.
Merge remote-tracking branch 'stevee/compat-packages'