openolat#1: create m2 dir if it does not exist already

.gitlab-ci.yml

@@ -48,6 +48,7 @@ release:
     - git config --global user.name "GitLab Release Runner"
     - git remote -v
     - git branch -v -a
+    - 'mkdir .m2 || echo ".m2 directory exists already"'
     - sed "s/__MVN_PASSWORD__/$MVN_PASSWORD/" ./scripts/settings.xml > .m2/settings.xml
   script:
     - bash -x ./scripts/uibk-release.sh