move update script to path

Dockerfile

@@ -2,6 +2,4 @@ FROM alpine/git
 
 RUN apk add --no-cache curl
 
-ADD update /update
-
-ENTRYPOINT /bin/sh
+ADD update /bin/update

lib/gitlab-ci.yml

@@ -12,5 +12,5 @@ update:
     - git config --global user.email "git@git.fginfo.tu-bs.de"
     - git config --global user.name "Gitlab CI"
   script:
-    - /update < pads.txt
+    - update < pads.txt
     - git push "https://gitlab-ci-token:${CI_ACCESS_TOKEN}@${CI_REPOSITORY_URL#*@}" "HEAD:${CI_COMMIT_REF_NAME}" -o skip-ci