ci(build): add additional cache key

Author: DevYukine

.github/workflows/build.yml

@@ -95,6 +95,8 @@ jobs:
         uses: actions/checkout@v3
       - name: Cache cargo & target directories
         uses: Swatinem/rust-cache@v2
+        with:
+          key: ${{ matrix.platform.release_for }}
       - name: Install musl-tools on Linux
         run: sudo apt-get update --yes && sudo apt-get install --yes musl-tools
         if: contains(matrix.platform.name, 'musl')