Build the directory from workspace root

Changing the build process of the directory to
build from the root workspace. Payjoin dependencies
on crate.io may not always be compatible leading
to failed builds

Author: arminsabouri

payjoin-directory/Dockerfile

@@ -20,12 +20,11 @@ ENV AR_x86_64_unknown_linux_musl=ar
 # Add the x86_64-unknown-linux-musl target
 RUN rustup target add x86_64-unknown-linux-musl
 
-# Copy the manifest and source code
-COPY payjoin-directory/Cargo.toml ./
-COPY payjoin-directory/src/ ./src/
+# Copy the workspace manifest and source code
+COPY . .
 
 # Build the binary
-RUN cargo build --release --target x86_64-unknown-linux-musl
+RUN cargo build --bin payjoin-directory --release --target x86_64-unknown-linux-musl
 
 # Create final minimal image
 FROM --platform=linux/amd64 alpine:latest