Add workflow to run unit specs

.github/workflows/ruby.yml

@@ -0,0 +1,39 @@
+name: Run Specs
+on: push #[push, pull_request]
+
+jobs:
+#  unit_specs:
+#    runs-on: ubuntu-latest
+#    strategy:
+#      matrix:
+#        sub_project:
+#        - common
+#        - core
+#        - dev
+#        - director-core
+#        - monitor
+#        - nats-sync
+#        - template
+#    steps:
+#    - uses: actions/checkout@v4
+#      with: { lfs: true}
+#    - uses: ruby/setup-ruby@v1
+#      with: { working-directory: src/ }
+#    - run: bundle install
+#      working-directory: src/
+#    - run: bundle exec rake spec:unit:${{matrix.sub_project}}:parallel
+#      working-directory: src/
+
+  unit_specs_director:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with: { lfs: true}
+    - uses: ruby/setup-ruby@v1
+      with: { working-directory: src/ }
+    - run: sudo systemctl start postgresql.service
+    - run: sudo -u postgres createuser --superuser runner
+    - run: bundle
+      working-directory: src/
+    - run: bundle exec rspec bosh-director/spec/unit/models/event_spec.rb
+      working-directory: src/