add dependabot & stale configs (tendermint#121)

.github/dependabot.yml

@@ -0,0 +1,16 @@
+version: 2
+updates:
+ - package-ecosystem: github-actions
+ directory: "/"
+ schedule:
+ interval: daily
+ time: "11:00"
+ open-pull-requests-limit: 10
+ - package-ecosystem: gomod
+ directory: "/"
+ schedule:
+ interval: daily
+ time: "11:00"
+ open-pull-requests-limit: 10
+ labels:
+ - T:dependencies

.github/workflows/stale.yml

@@ -0,0 +1,18 @@
+name: "Close stale pull requests"
+on:
+ schedule:
+ - cron: "0 0 * * *"
+
+jobs:
+ stale:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/stale@v3
+ with:
+ repo-token: ${{ secrets.GITHUB_TOKEN }}
+ stale-pr-message: "This pull request has been automatically marked as stale because it has not had
+ recent activity. It will be closed if no further activity occurs. Thank you
+ for your contributions."
+ days-before-stale: 10
+ days-before-close: 4
+ exempt-pr-labels: "S:wip"