Adding Debian 13 to CI (#488) #771

Job	Run time
macos-14 (CMake) (LLVM)	6m 50s
debian:unstable (Latest Mapnik) (CMake) (GNU)	2m 2s
macos-15 (CMake) (LLVM)	8m 58s
macos-26 (CMake) (LLVM)	6m 47s
freebsd-13 (CMake) (LLVM)	7m 19s
freebsd-14 (CMake) (LLVM)	7m 51s
fedora:42 (CMake) (GNU)	3m 44s
ubuntu:devel (Latest Mapnik) (CMake) (GNU)	1m 57s
debian:12 (CMake) (GNU)	3m 31s
fedora:41 (CMake) (GNU)	3m 25s
debian:unstable (CMake) (GNU)	3m 39s
quay.io/centos/centos:stream9 (CMake) (GNU)	17m 5s
ubuntu:22.04 (CMake) (GNU)	3m 11s
ubuntu:devel (CMake) (GNU)	3m 39s
ubuntu:24.04 (Autotools) (GNU)	2m 24s
ubuntu:24.04 (Autotools) (LLVM)	2m 26s
ubuntu:24.04 (CMake) (LLVM)	3m 29s
fedora:rawhide (CMake) (GNU)	3m 47s
opensuse/leap:15 (CMake) (GNU)	4m 12s
quay.io/centos/centos:stream10 (CMake) (GNU)	18m 34s
ubuntu:24.04 (CMake) (GNU)	3m 23s
debian:13 (CMake) (GNU)	3m 37s
	2h 1m 50s

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