ci: Update ctest scripts with policies through CMake 3.29

Since commit 84db8506ff (Deprecate compatibility with CMake versions
older than 3.10, 2024-10-03) some of the scripts warned when executed
with a `ctest` built earlier in the pipeline.

.gitlab/ci/ctest_build.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.29)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 

.gitlab/ci/ctest_configure.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.29)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 

.gitlab/ci/ctest_memcheck.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.29)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 

.gitlab/ci/ctest_standalone.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.29)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/env_$ENV{CMAKE_CONFIGURATION}.cmake" OPTIONAL)

.gitlab/ci/ctest_test.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.29)
 
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 

.gitlab/ci/download_qt.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.29)
 
 # Input variables.
 set(qt_version_major "5")

.gitlab/ci/package_windows_build.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.24)
+cmake_minimum_required(VERSION 3.29)
 include(build/ci_package_info.cmake)
 
 set(build "${CMAKE_CURRENT_BINARY_DIR}/build")