CMake: Fix spelling mistake

"Install CMake package configiguration module" --> configuration

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Signed-off-by: Ralph Giles <giles@thaumas.net>
2 jobs for master in 1 minute and 43 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Build
passed autoconf #11654
docker

00:01:43

passed cmake #11655
docker

00:00:33