build: CMake 4.1.2 for the runtime native build

The SDK repository's stable channel now offers CMake 4.1.2, and the runtime's
CMakeLists only asks for 3.18.1, which is above the 3.5 floor CMake 4 still
accepts. Only the runtime AAR build here uses this version; the scripts shipped
to apps never invoke CMake.

Author: edusperoni

.github/workflows/npm_release.yml

@@ -16,7 +16,7 @@ env:
   NPM_TAG: "next"
   EMULATOR_NAME: "runtime-emu"
   NDK_VERSION: r29
-  CMAKE_VERSION: "3.31.6"
+  CMAKE_VERSION: "4.1.2"
   ANDROID_API: 33
   ANDROID_ABI: x86_64
   NDK_ARCH: linux

.github/workflows/pull_request.yml

@@ -6,7 +6,7 @@ env:
   NPM_TAG: "pr"
   EMULATOR_NAME: "runtime-emu"
   NDK_VERSION: r29
-  CMAKE_VERSION: "3.31.6"
+  CMAKE_VERSION: "4.1.2"
   ANDROID_API: 33
   ANDROID_ABI: x86_64
   NDK_ARCH: linux

test-app/runtime/build.gradle

@@ -152,7 +152,7 @@ android {
     }
     externalNativeBuild {
         cmake {
-            version = "3.31.6"
+            version = "4.1.2"
             path = "CMakeLists.txt"
         }
     }