Remove link flag

Signed-off-by: Chirag Aggarwal <thechiragaggarwal@gmail.com>

Dockerfile

@@ -33,7 +33,7 @@ RUN apk add --update --no-cache \
     /.cache
 
 COPY --chmod=755 entry.sh /entry.sh
-COPY --link requirements.txt /
+COPY requirements.txt /
 
 RUN python3 -m pip install --no-cache -Ur requirements.txt
 RUN borgmatic --bash-completion > /usr/share/bash-completion/completions/borgmatic && echo "source /etc/profile.d/bash_completion.sh" > /root/.bashrc