'test/Dockerfile' updaten

test/Dockerfile

@@ -1,9 +1,8 @@
-docker run \
-  --rm \
-  --privileged \
-  -v ~/.docker:/root/.docker \
-  homeassistant/amd64-builder \
-  --all \
-  -t addon-folder \
-  -r https://github.com/xy/addons \
-  -b branchname
+ARG BUILD_FROM
+FROM $BUILD_FROM
+
+# Copy data for add-on
+COPY run.sh /
+RUN chmod a+x /run.sh
+
+CMD [ "/run.sh" ]