feat(CI): lock the release action version, remove useless merger

Signed-off-by: lxl66566 <lxl66566@gmail.com>

Author: lxl66566

.github/dependabot-auto-merger.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: release rust project
-        uses: lxl66566/rust-simple-release@main
+        uses: lxl66566/rust-simple-release@v0.2.5
         with:
           targets: aarch64-unknown-linux-gnu, aarch64-unknown-linux-musl, x86_64-pc-windows-msvc, x86_64-unknown-linux-musl, x86_64-unknown-linux-gnu, aarch64-apple-darwin, x86_64-apple-darwin
           token: ${{ secrets.GH_TOKEN }}