Add daily test runs on Ruby nightly

.github/workflows/ruby-nightly.yml

@@ -0,0 +1,18 @@
+name: Ruby Nightly
+
+# on:
+# schedule:
+# # Checks daily
+# - cron: '0 0 * * *'
+on: push
+
+jobs:
+ TestsOnNightly:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v3
+ - uses: ruby/setup-ruby@v1
+ with:
+ ruby-version: ruby-head
+ bundler-cache: true
+ - run: bundle exec rspec