Enable package butler

Author: davidanthoff

.github/workflows/jlpkgbutler-butler-workflow.yml

@@ -0,0 +1,23 @@
+name: Run the Julia Package Butler
+
+on:
+  push:
+    branches:
+      - master
+  schedule:
+    - cron: '0 */1 * * *'
+
+jobs:
+  butler:
+    name: "Run Package Butler"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1.0.0
+      - uses: julia-actions/setup-julia@latest
+        with:
+          version: 1.3.0
+      - uses: davidanthoff/julia-pkgbutler@releases/v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          ssh-private-key: ${{ secrets.JLPKGBUTLER_TOKEN }}
+          channel: stable

.jlpkgbutler.toml

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+template = "bach"