package/cmake: bump version to 3.31.8

Release notes:
https://www.kitware.com/cmake-3-31-6-available-for-download/
https://www.kitware.com/cmake-3-31-7-available-for-download/
https://www.kitware.com/cmake-3-31-8-available-for-download/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/cmake/cmake.hash

@@ -1,5 +1,5 @@
-# From https://cmake.org/files/v3.31/cmake-3.31.5-SHA-256.txt
-sha256  66fb53a145648be56b46fa9e8ccade3a4d0dfc92e401e52ce76bdad1fea43d27  cmake-3.31.5.tar.gz
+# From https://cmake.org/files/v3.31/cmake-3.31.8-SHA-256.txt
+sha256  e3cde3ca83dc2d3212105326b8f1b565116be808394384007e7ef1c253af6caa  cmake-3.31.8.tar.gz
 
 # Locally calculated
 sha256  0676e30827684487aa0ea8f72f01e9460a6320fa34a2888df0ad1dd3e8a06eb8  Copyright.txt

package/cmake/cmake.mk

@@ -6,7 +6,7 @@
 
 # When updating the version, please also update BR2_HOST_CMAKE_AT_LEAST_X_Y
 CMAKE_VERSION_MAJOR = 3.31
-CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).5
+CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).8
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = Copyright.txt