use beta travis provider for custom deploy msg

.travis.yml

@@ -39,13 +39,12 @@ deploy:
       on:
           tags: true
     - provider: pages
-      skip-cleanup: true
+      edge: true
       github-token: $GITHUB_TOKEN
       local-dir: build/LatexPackages
       repo: kesslermaximilian/LatexPackagesBuild
       commiter_from_gh: true
       allow_empty_commit: true
-      keep-history: true
       target_branch: $TRAVIS_BRANCH
       commit_message: "%{git_commit_msg}\n\nBuilt commit %{git_sha} from %{repo}:%{git_branch}"
       on: