chore: address dockerfile lints (#255)

Dockerfile

@@ -4,15 +4,14 @@ ENV DEBIAN_FRONTEND=noninteractive
 ARG BUILD_FLAGS=""
 
 # risc0 dependencies
-# RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash
-# RUN cargo binstall -y --force cargo-risczero
-# RUN cargo risczero install
+# RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash && \
+#     cargo binstall -y --force cargo-risczero && \
+#     cargo risczero install
 
 WORKDIR /opt/raiko
 COPY . .
 RUN cargo build --release ${BUILD_FLAGS} --features "sgx" --features "docker_build"
 
-
 FROM gramineproject/gramine:1.6-jammy as runtime
 ENV DEBIAN_FRONTEND=noninteractive
 WORKDIR /opt/raiko
@@ -29,8 +28,8 @@ RUN apt-get update && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-RUN sed -i 's/#default quoting type = ecdsa_256/default quoting type = ecdsa_256/' /etc/aesmd.conf
-RUN sed -i 's/,"use_secure_cert": true/,"use_secure_cert": false/' /etc/sgx_default_qcnl.conf
+RUN sed -i 's/#default quoting type = ecdsa_256/default quoting type = ecdsa_256/' /etc/aesmd.conf && \
+    sed -i 's/,"use_secure_cert": true/,"use_secure_cert": false/' /etc/sgx_default_qcnl.conf
 
 RUN mkdir -p \
     ./bin \
@@ -49,8 +48,8 @@ COPY --from=builder /opt/raiko/docker/enclave-key.pem /root/.config/gramine/encl
 
 ARG EDMM=0
 ENV EDMM=${EDMM}
-RUN cd ./bin && \
-    gramine-manifest -Dlog_level=error -Ddirect_mode=0 -Darch_libdir=/lib/x86_64-linux-gnu/ ../provers/sgx/config/sgx-guest.local.manifest.template sgx-guest.manifest && \
+WORKDIR /opt/raiko/bin
+RUN gramine-manifest -Dlog_level=error -Ddirect_mode=0 -Darch_libdir=/lib/x86_64-linux-gnu/ ../provers/sgx/config/sgx-guest.local.manifest.template sgx-guest.manifest && \
     gramine-sgx-sign --manifest sgx-guest.manifest --output sgx-guest.manifest.sgx && \
     gramine-sgx-sigstruct-view "sgx-guest.sig"