ci: bump node to 23.8.0

.gitlab/ci/download_node.cmake

 cmake_minimum_required(VERSION 3.12)
 
-set(node_version "22.0.0")
-set(node_url "https://vtk.org/files/support")
+set(node_version "23.8.0")
+set(node_baseurl "https://vtk.org/files/support")
+# Uncomment to test newer releases before mirroring at vtk.org
+# set(node_baseurl "https://nodejs.org/download/release/v${node_version}")
 
 if ("$ENV{CMAKE_CONFIGURATION}" MATCHES "windows")
   set(node_platform "win-x64")
   set(node_ext "zip")
-  set(node_hash "32d639b47d4c0a651ff8f8d7d41a454168a3d4045be37985f9a810cf8cef6174")
+  set(node_hash "9e03646224fcf44fa0b594df5d012da9cb5b137c52f36f33b11def3319cd132c")
 elseif ("$ENV{CMAKE_CONFIGURATION}" MATCHES "linux")
   set(node_platform "linux-x64")
   set(node_ext "tar.gz")
-  set(node_hash "74bb0f3a80307c529421c3ed84517b8f543867709f41e53cd73df99e6442af4d")
+  set(node_hash "f6d98bbdd0a4078c1e422a6a1d8bf07ad693a4dd793bb5772990456faeca6e95")
 else ()
   message(FATAL_ERROR
       "Unknown platform for node $ENV{CMAKE_CONFIGURATION}")
@@ -19,7 +21,7 @@ set(node_file "node-v${node_version}-${node_platform}.${node_ext}")
 
 # Download the file.
 file(DOWNLOAD
-  "${node_url}/${node_file}"
+  "${node_baseurl}/${node_file}"
   ".gitlab/${node_file}"
   STATUS download_status
   EXPECTED_HASH "SHA256=${node_hash}")

CMake/vtkCompilerPlatformFlags.cmake

@@ -39,9 +39,8 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
     set(VTK_REQUIRED_MODULE_LINKER_FLAGS "${VTK_REQUIRED_MODULE_LINKER_FLAGS} -pthread")
   endif ()
   if (VTK_WEBASSEMBLY_64_BIT)
-    # Remove after wasm64 is no longer experimental in clang.
-    set(VTK_REQUIRED_CXX_FLAGS "${VTK_REQUIRED_CXX_FLAGS} -sMEMORY64=1 -Wno-experimental")
-    set(VTK_REQUIRED_C_FLAGS "${VTK_REQUIRED_C_FLAGS} -sMEMORY64=1 -Wno-experimental")
+    set(VTK_REQUIRED_CXX_FLAGS "${VTK_REQUIRED_CXX_FLAGS} -sMEMORY64=1")
+    set(VTK_REQUIRED_C_FLAGS "${VTK_REQUIRED_C_FLAGS} -sMEMORY64=1")
     set(VTK_REQUIRED_EXE_LINKER_FLAGS "${VTK_REQUIRED_EXE_LINKER_FLAGS} -sMEMORY64=1")
     set(VTK_REQUIRED_SHARED_LINKER_FLAGS "${VTK_REQUIRED_SHARED_LINKER_FLAGS} -sMEMORY64=1")
     set(VTK_REQUIRED_MODULE_LINKER_FLAGS "${VTK_REQUIRED_MODULE_LINKER_FLAGS} -sMEMORY64=1")

Web/WebAssembly/Testing/JavaScript/CMakeLists.txt

-set(vtk_nodejs_min_version "22.0.0")
+set(vtk_nodejs_min_version "23.8.0")
 find_package(NodeJS "${vtk_nodejs_min_version}" REQUIRED)
 if (VTK_WEBASSEMBLY_64_BIT)
   set(_vtk_node_args "--experimental-wasm-memory64")