Make the HostInfo package lookup properly versioned

Avoid hardcoding the HostInfo package version, use the
INSTALL_CMAKE_NAMESPACE as the reference for the find_package calls.

If we assume that the package follows the versioning in the future,
we should consider the Qt version, to avoid any version related
issues.

Pick-to: 6.5 6.8 6.9
Change-Id: If84550ab82f8de51ff5af41c7f31838c4ed53a67
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

Author: semlanik

cmake/QtBuildHelpers.cmake

@@ -361,7 +361,8 @@ endfunction()
 
 macro(qt_internal_setup_find_host_info_package)
     _qt_internal_determine_if_host_info_package_needed(__qt_build_requires_host_info_package)
-    _qt_internal_find_host_info_package("${__qt_build_requires_host_info_package}")
+    _qt_internal_find_host_info_package("${__qt_build_requires_host_info_package}"
+        ${INSTALL_CMAKE_NAMESPACE})
 endmacro()
 
 macro(qt_internal_setup_poor_mans_scope_finalizer)
@@ -489,4 +490,3 @@ macro(qt_internal_setup_build_and_global_variables)
 
     qt_internal_detect_dirty_features()
 endmacro()
-

cmake/QtConfigDependencies.cmake.in

@@ -17,7 +17,8 @@ _qt_internal_setup_qt_host_path(
     "${__qt_platform_requires_host_info_package}"
     "${__qt_platform_initial_qt_host_path}"
     "${__qt_platform_initial_qt_host_path_cmake_dir}")
-_qt_internal_find_host_info_package(${__qt_platform_requires_host_info_package})
+_qt_internal_find_host_info_package(${__qt_platform_requires_host_info_package}
+    @INSTALL_CMAKE_NAMESPACE@)
 
 # note: _third_party_deps example: "ICU\\;FALSE\\;1.0\\;i18n uc data;ZLIB\\;FALSE\\;\\;"
 set(__qt_third_party_deps "@third_party_deps@")

cmake/QtPublicDependencyHelpers.cmake

@@ -239,9 +239,9 @@ function(_qt_internal_determine_if_host_info_package_needed out_var)
     set(${out_var} "${needed}" PARENT_SCOPE)
 endfunction()
 
-macro(_qt_internal_find_host_info_package platform_requires_host_info)
+macro(_qt_internal_find_host_info_package platform_requires_host_info install_namespace)
     if(${platform_requires_host_info})
-        find_package(Qt6HostInfo
+        find_package(${install_namespace}HostInfo
                      CONFIG
                      REQUIRED
                      PATHS "${QT_HOST_PATH}"