Use local cache files

.github/workflows/ci.yml

@@ -16,6 +16,7 @@ jobs:
       - name: check with dnscrypt-proxy
         run: |
           curl -qL https://github.com/jedisct1/dnscrypt-proxy/releases/download/2.0.45/dnscrypt-proxy-linux_x86_64-2.0.45.tar.gz | tar xzvf -
+          cp v3/* linux-x86_64
           cd linux-x86_64
           cp example-dnscrypt-proxy.toml dnscrypt-proxy.toml
           sed -i -e 's/listen_addresses.*/listen_addresses = ["127.0.0.1:5300"]/' dnscrypt-proxy.toml