Copy configuration to correct directory.

Dockerfile

@@ -73,7 +73,7 @@ RUN apk add --no-cache \
 # libsml is linked statically => no need to copy
 COPY --from=builder /usr/local/bin/vzlogger /usr/local/bin/vzlogger
 COPY --from=builder /usr/local/lib/libmbus.so* /usr/local/lib/
-COPY ./vzlogger.conf /cfg
+COPY ./vzlogger.conf /etc/vzlogger.conf
 
 # without running a user context, no exec is possible and without the dialout group no access to usb ir reader possible
 RUN adduser -S vz -G dialout