Remove obsolete CMake setup action; use runner-preinstalled cmake (#1679)

## Context

CI started failing today on every fresh runner with:

```
##[error]Unable to find version matching 3.31.6
```

from `jwlawson/actions-setup-cmake@v2`. The GitHub release for `v3.31.6`
still exists, and so do `3.31.8` and `3.31.12`, but the action's
resolver can't find any of them right now. Bumping the pin to other
3.31.x patches did not help.

## Why the pin existed

The original Azure Pipelines `cmake.yml` script (pre-#1661) had this
comment:

> `# Force using older cmake See
https://gitlab.kitware.com/cmake/cmake/-/issues/22021`

That CMake bug — `MACOSX_PACKAGE_LOCATION` mishandling for
`INTERFACE_SOURCES` — was [**fixed in CMake
3.22**](https://gitlab.kitware.com/cmake/cmake/-/merge_requests/6698)
(MR!6698). The pin carried over into #1661 as part of the faithful
Azure-→-Actions port.

## Why we don't need to pin anymore

- `CMakeLists.txt` requires `cmake_minimum_required(VERSION 3.21)`.
- All current GitHub-hosted runner images (Ubuntu, Windows, macOS) ship
CMake ≥ 3.30.
- The original `#22021` bug we were avoiding is fixed in 3.22, well
below anything any runner ships today.

## Change

Remove the `jwlawson/actions-setup-cmake@v2` step (and its
`CMAKE_VERSION` env var) from all 11 workflow files. The
runner-preinstalled CMake satisfies our minimum and avoids the broken
action altogether.

[Created by Copilot on behalf of @bghgary]

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: bghgary

.github/workflows/build-android.yml

@@ -11,7 +11,6 @@ on:
         type: string
 
 env:
-  CMAKE_VERSION: '3.31.6'
   NDK_VERSION: '28.2.13676358'
 
 jobs:
@@ -21,10 +20,6 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - uses: actions/setup-java@v5
         with:

.github/workflows/build-ios.yml

@@ -15,20 +15,13 @@ on:
         type: string
         default: macos-latest
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   build:
     runs-on: ${{ inputs.runs-on }}
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Select Xcode ${{ inputs.xcode-version }}
         run: sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-version }}.app/Contents/Developer

.github/workflows/build-linux.yml

@@ -18,7 +18,6 @@ on:
         default: false
 
 env:
-  CMAKE_VERSION: '3.31.6'
   UBSAN_OPTIONS: halt_on_error=1:print_stacktrace=1:symbolize=1
   ASAN_OPTIONS: abort_on_error=1
 
@@ -32,10 +31,6 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Install packages
         run: |

.github/workflows/build-macos.yml

@@ -21,7 +21,6 @@ on:
         default: macos-latest
 
 env:
-  CMAKE_VERSION: '3.31.6'
   UBSAN_OPTIONS: halt_on_error=1:print_stacktrace=1:symbolize=1
   ASAN_OPTIONS: abort_on_error=1
 
@@ -32,10 +31,6 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Select Xcode ${{ inputs.xcode-version }}
         run: sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-version }}.app/Contents/Developer

.github/workflows/build-uwp.yml

@@ -11,20 +11,13 @@ on:
         type: string
         default: direct
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   build:
     runs-on: windows-latest
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Set NAPI variables
         id: napi

.github/workflows/build-win32-shader.yml

@@ -8,20 +8,13 @@ on:
         type: string
         default: x64
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   build:
     runs-on: windows-latest
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Generate solution
         shell: cmd

.github/workflows/build-win32.yml

@@ -19,20 +19,13 @@ on:
         type: boolean
         default: false
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   build:
     runs-on: windows-latest
     timeout-minutes: 60
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Set variables
         id: vars

.github/workflows/test-install-ios.yml

@@ -11,20 +11,13 @@ on:
         type: string
         default: '16.4'
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   test-install:
     runs-on: macos-latest
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Select Xcode ${{ inputs.xcode-version }}
         run: sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-version }}.app/Contents/Developer

.github/workflows/test-install-linux.yml

@@ -3,20 +3,13 @@ name: Test Install Linux
 on:
   workflow_call: {}
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   test-install:
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Install packages
         run: |

.github/workflows/test-install-macos.yml

@@ -8,20 +8,13 @@ on:
         type: string
         default: '16.4'
 
-env:
-  CMAKE_VERSION: '3.31.6'
-
 jobs:
   test-install:
     runs-on: macos-latest
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@v5
 
-      - uses: jwlawson/actions-setup-cmake@v2
-        with:
-          cmake-version: ${{ env.CMAKE_VERSION }}
-
 
       - name: Select Xcode ${{ inputs.xcode-version }}
         run: sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-version }}.app/Contents/Developer