Fix GitHub Actions workflow: update determinate-nix-action version

- Change determinate-nix-action from v16 to v3 (v16 does not exist)
- Resolves workflow error: unable to find version v16

Author: wrjade

.github/workflows/build.yml

@@ -48,7 +48,7 @@ jobs:
         lfs: true # 必须开启 LFS 以便检出 CPLEX 安装包
 
     - name: Install Nix
-      uses: DeterminateSystems/determinate-nix-action@v16
+      uses: DeterminateSystems/determinate-nix-action@v3
 
     - name: Magic Nix Cache
       uses: DeterminateSystems/magic-nix-cache-action@main