cI: use newest alpine for musl build

Author: Totto16

.github/workflows/musl.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     name: ${{ matrix.config.name }}
     runs-on: ubuntu-24.04
-    container: alpine:3.20
+    container: alpine:3.21
 
     strategy:
       fail-fast: false
@@ -32,9 +32,9 @@ jobs:
       - name: Install dependencies
         run: |
           apk update
-          apk add wget meson ca-certificates samurai git openssl-dev openssl pkgconf sdl2 sdl2-dev sdl2_mixer-dev sdl2_ttf-dev sdl2_mixer-dev sdl2_image-dev dbus-dev patchelf ${{ ( matrix.config.use-clang == true ) && 'clang18' || 'gcc g++' }} ${{ ( matrix.config.use-clang == true && matrix.config.use-clang_stdlib == true ) && 'libc++ libc++-dev' || '' }}
-          echo "CC=${{ matrix.config.use-clang == true && 'clang-18' || 'gcc' }}" >> "$GITHUB_ENV"
-          echo "CXX=${{ matrix.config.use-clang == true && 'clang++-18' || 'g++' }}" >> "$GITHUB_ENV"
+          apk add wget meson ca-certificates samurai git openssl-dev openssl pkgconf sdl2 sdl2-dev sdl2_mixer-dev sdl2_ttf-dev sdl2_mixer-dev sdl2_image-dev dbus-dev patchelf ${{ ( matrix.config.use-clang == true ) && 'clang19' || 'gcc g++' }} ${{ ( matrix.config.use-clang == true && matrix.config.use-clang_stdlib == true ) && 'libc++ libc++-dev' || '' }}
+          echo "CC=${{ matrix.config.use-clang == true && 'clang-19' || 'gcc' }}" >> "$GITHUB_ENV"
+          echo "CXX=${{ matrix.config.use-clang == true && 'clang++-19' || 'g++' }}" >> "$GITHUB_ENV"
 
       - uses: actions/checkout@v4
         with: