Examples: WebGPU: Require C++20 to build Dawn examples (#9433, #9432)

diff --git a/examples/example_glfw_wgpu/CMakeLists.txt b/examples/example_glfw_wgpu/CMakeLists.txt
index 287a89d..4eaaee7 100644
--- a/examples/example_glfw_wgpu/CMakeLists.txt
+++ b/examples/example_glfw_wgpu/CMakeLists.txt

@@ -37,7 +37,7 @@
     set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
 endif()
 
-set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+set(CMAKE_CXX_STANDARD 20) # Dawn requires C++20
 
 # Dear ImGui
 set(IMGUI_DIR ../../)

diff --git a/examples/example_sdl2_wgpu/CMakeLists.txt b/examples/example_sdl2_wgpu/CMakeLists.txt
index efe35ff..8795070 100644
--- a/examples/example_sdl2_wgpu/CMakeLists.txt
+++ b/examples/example_sdl2_wgpu/CMakeLists.txt

@@ -37,7 +37,7 @@
     set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
 endif()
 
-set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+set(CMAKE_CXX_STANDARD 10) # Dawn requires C++20
 
 # Dear ImGui
 set(IMGUI_DIR ../../)

diff --git a/examples/example_sdl3_wgpu/CMakeLists.txt b/examples/example_sdl3_wgpu/CMakeLists.txt
index dd7b1e4..21a72bd 100644
--- a/examples/example_sdl3_wgpu/CMakeLists.txt
+++ b/examples/example_sdl3_wgpu/CMakeLists.txt

@@ -37,7 +37,7 @@
     set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
 endif()
 
-set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+set(CMAKE_CXX_STANDARD 20) # Dawn requires C++20
 
 # Dear ImGui
 set(IMGUI_DIR ../../)