Meson

nixd/Server/configuration: Log when `workspace/configuration` is `[null]` #1700

Job	Run time
nix-build-develop-clang (none, release, true)	4m 7s
nix-build-develop-clang (none, release, false)	4m 6s
nix-build-develop-clang (none, debug, true)	5m 5s
nix-build-develop-clang (none, debug, false)	3m 45s
nix-build-develop-gcc (none, release, true)	5m 43s
nix-build-develop-gcc (none, release, false)	5m 43s
nix-build-develop-gcc (none, debug, true)	5m 56s
nix-build-develop-gcc (none, debug, false)	4m 39s
nix-build-develop-gcc (undefined, release, true)	10m 48s
nix-build-develop-gcc (undefined, release, false)	10m 34s
nix-build-develop-gcc (undefined, debug, true)	6m 39s
nix-build-develop-gcc (undefined, debug, false)	5m 45s
	1h 12m 50s

Provide feedback