ci: remove setup, as we not need

Author: wangl-cc

.github/workflows/ci.yml

@@ -64,10 +64,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v5
-      - name: Setup Toolchains
-        uses: ./.github/actions/setup
-        with:
-          arch: "${{ matrix.os != 'macos-13' || endsWith(matrix.os, 'arm') ? 'arm' : 'x86_64' }}"
       - name: Setup Cache
         uses: Swatinem/rust-cache@v2
       - name: Build (maa-cli)
@@ -187,8 +183,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v5
-      - name: Setup Toolchains
-        uses: ./.github/actions/setup
       - name: Setup Cache
         uses: Swatinem/rust-cache@v2
       - name: Install MaaCore