fix docker

Author: aayush-tripathi

exec.Dockerfile

@@ -1,15 +1,13 @@
-# ---- build ----
-FROM rust:1.78-slim AS build
+# exec.Dockerfile
+FROM rust:1.75 AS build
 WORKDIR /app
-COPY Cargo.toml .
-COPY tundra/Cargo.toml tundra/Cargo.toml
-COPY executor/Cargo.toml executor/Cargo.toml
-RUN cargo fetch
 COPY . .
+RUN cargo fetch
 RUN cargo build --release -p executor
 
-# ---- runtime ----
-FROM gcr.io/distroless/cc
+# ──────────────────────────────────────────────────────────
+FROM debian:bookworm-slim
+WORKDIR /app
 COPY --from=build /app/target/release/executor /usr/local/bin/executor
 EXPOSE 8080
-ENTRYPOINT ["/usr/local/bin/executor"]
+CMD ["executor"]