use slim image for hyperbridge docker node

parachain/node/src/command.rs

@@ -24,7 +24,9 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
             let id = u32::from_str(id).expect("can't parse Id into u32");
             Box::new(chain_spec::development_config(id))
         },
-        "gargantuan" => Box::new(chain_spec::ChainSpec::from_json_bytes(include_bytes!("../../chainspec/gargantuan-raw.json"))),
+        "gargantuan" => Box::new(chain_spec::ChainSpec::from_json_bytes(
+            include_bytes!("../../chainspec/gargantuan-raw.json").to_vec(),
+        )?),
         "" | "local" => Box::new(chain_spec::local_testnet_config()),
         path => Box::new(chain_spec::ChainSpec::from_json_file(std::path::PathBuf::from(path))?),
     })

scripts/docker/slim.Dockerfile

@@ -0,0 +1,8 @@
+FROM docker.io/library/debian:bullseye-slim
+
+WORKDIR /
+
+COPY ./hyperbridge ./
+
+
+ENTRYPOINT ["./hyperbridge"]