Shuffle build configs

Put slow ones first to reduce the overall build time.

Author: YaaZ

.github/workflows/build-custom-vulkan.yml

@@ -15,7 +15,7 @@ on:
         type: string
 jobs:
   build:
-    name: ${{matrix.env.os}} ${{matrix.env.name || matrix.env.c}} ${{matrix.env.modules && 'cppm'}}
+    name: ${{matrix.env.name || matrix.env.c}}${{matrix.env.modules && '-cppm'}} ${{matrix.env.os}}
     env:
       compiler: ${{matrix.env.name || matrix.env.c}}
       modules: ${{matrix.env.modules}}
@@ -26,20 +26,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        env: [
-          { os: macos-15, cxx: clang++, name: apple-clang },
-#          { os: macos-15, cxx: /opt/homebrew/opt/llvm/bin/clang++, name: clang, cxx_flags: '-I/opt/homebrew/opt/llvm/include/c++/v1 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk', linker_flags: '-L/opt/homebrew/opt/llvm/lib/c++', modules: true }, # TODO Enable when https://github.com/YaaZ/VulkanMemoryAllocator-Hpp/issues/65 is fixed
+        env: [ # Put slowest configurations first, so that they get dispatched before hitting the runner limit.
+          { os: windows-2025, name: msvc, cxx_flags: '//EHsc' },
+          { os: windows-2025, cxx: c++, c: cc, name: gcc },
+          { os: windows-2025, cxx: clang-cl, c: clang-cl, cxx_flags: '/EHsc' },
+          { os: ubuntu-24.04, cxx: g++-12, c: gcc-12 },
+          { os: ubuntu-24.04, cxx: g++-13, c: gcc-13 },
+          { os: ubuntu-24.04, cxx: g++-14, c: gcc-14 },
           { os: ubuntu-24.04, cxx: clang++-16, c: clang-16 },
           { os: ubuntu-24.04, cxx: clang++-17, c: clang-17 },
           { os: ubuntu-24.04, cxx: clang++-18, c: clang-18 },
+          { os: macos-15, cxx: clang++, name: apple-clang },
           { os: ubuntu-24.04, cxx: clang++-18, c: clang-18, cxx_flags: '-stdlib=libc++', linker_flags: '-stdlib=libc++ -lc++abi', modules: true },
-          { os: ubuntu-24.04, cxx: g++-12, c: gcc-12 },
-          { os: ubuntu-24.04, cxx: g++-13, c: gcc-13 },
-          { os: ubuntu-24.04, cxx: g++-14, c: gcc-14 },
-          { os: windows-2025, name: msvc, cxx_flags: '//EHsc' },
           { os: windows-2025, name: msvc, cxx_flags: '//EHsc', modules: true, extra_flags: '-DVMA_HPP_SAMPLES_BUILD=OFF' }, # TODO Build samples when MSVC stops failing with ICE
-          { os: windows-2025, cxx: clang-cl, c: clang-cl, cxx_flags: '/EHsc' },
-          { os: windows-2025, cxx: c++, c: cc, name: gcc },
+#          { os: macos-15, cxx: /opt/homebrew/opt/llvm/bin/clang++, name: clang, cxx_flags: '-I/opt/homebrew/opt/llvm/include/c++/v1 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk', linker_flags: '-L/opt/homebrew/opt/llvm/lib/c++', modules: true }, # TODO Enable when https://github.com/YaaZ/VulkanMemoryAllocator-Hpp/issues/65 is fixed
         ]
     steps:
       - name: Checkout