Fix: Use rustup to install latest Rust for edition2024 support in Alpine build

.github/workflows/ci.yml

@@ -141,9 +141,16 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Install Rust toolchain (rustup for edition2024 support)
+        run: |
+          apk add --no-cache curl
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+          source $HOME/.cargo/env
+          rustc --version
+          cargo --version
       - name: Install build dependencies
         run: |
-          apk add --no-cache rust cargo musl-dev openssl-dev git abuild
+          apk add --no-cache musl-dev openssl-dev git abuild
       - name: Build APK package
         run: ./build-alpine.sh
       - name: Upload to releases (on tag)