make cleaner by handing release mode properly

[github-actions]

ARG BUILD_MODE="--release"

Line: 18

MADstack/Dockerfile

Lines 15 to 25 in b366586

	COPY migrations ./migrations
	COPY diesel.toml ./diesel.toml
	# TODO: make cleaner by handing release mode properly
	# ARG BUILD_MODE="--release"
	ARG BUILD_MODE=""
	RUN cargo build $BUILD_MODE
	# Runtime stage
	FROM debian:trixie-slim