Stop copying extra qemu files

Dockerfile

@@ -1,10 +1,14 @@
 ARG REPO=library
+
 FROM multiarch/qemu-user-static:4.1.0-1 as qemu-user-static
+# Make sure a dummy x86_64 file exists so that the copy command doesn't error
+RUN touch /usr/bin/qemu-x86_64-fake
+
 FROM ${REPO}/python:3-alpine
 
-# TODO: Copy from docker hub image
+# Copy mutliarch file to run builds on x86_64
 ARG ARCH=x86_64
-COPY --from=qemu-user-static /usr/bin/qemu-* /usr/bin/
+COPY --from=qemu-user-static /usr/bin/qemu-${ARCH}-* /usr/bin/
 
 RUN mkdir -p /src
 WORKDIR /src