fix(interop-tests): don't hardcode x86_64 for native

Remove hard-coded `x86_64` for the native interop tests. The tests couldn't run on arm64 architecture.

Pull-Request: libp2p#4862.

interop-tests/Dockerfile.native

@@ -1,6 +1,5 @@
 # syntax=docker/dockerfile:1.5-labs
-FROM rust:1.73.0 as chef
-RUN wget -q -O- https://github.com/LukeMathWalker/cargo-chef/releases/download/v0.1.62/cargo-chef-x86_64-unknown-linux-gnu.tar.gz | tar -zx -C /usr/local/bin
+FROM lukemathwalker/cargo-chef:0.1.62-rust-1.73.0 as chef
 WORKDIR /app
 
 FROM chef AS planner
@@ -10,12 +9,13 @@ RUN cargo chef prepare --recipe-path recipe.json
 FROM chef AS builder
 COPY --from=planner /app/recipe.json recipe.json
 # Build dependencies - this is the caching Docker layer!
-RUN RUSTFLAGS='-C target-feature=+crt-static' cargo chef cook --release --package interop-tests --target x86_64-unknown-linux-gnu --bin native_ping --recipe-path recipe.json
+RUN RUSTFLAGS='-C target-feature=+crt-static' cargo chef cook --release --package interop-tests --target $(rustc -vV | grep host | awk '{print $2}') --bin native_ping --recipe-path recipe.json
 # Build application
 COPY . .
-RUN RUSTFLAGS='-C target-feature=+crt-static' cargo build --release --package interop-tests --target x86_64-unknown-linux-gnu --bin native_ping
+RUN RUSTFLAGS='-C target-feature=+crt-static' cargo build --release --package interop-tests --target $(rustc -vV | grep host | awk '{print $2}') --bin native_ping
+RUN cp /app/target/$(rustc -vV | grep host | awk '{print $2}')/release/native_ping /usr/local/bin/testplan
 
 FROM scratch
-COPY --from=builder /app/target/x86_64-unknown-linux-gnu/release/native_ping /usr/local/bin/testplan
+COPY --from=builder /usr/local/bin/testplan /usr/local/bin/testplan
 ENV RUST_BACKTRACE=1
 ENTRYPOINT ["testplan"]