Update PR template and add changelog verifier workflow (#642)

* Update PR template and add changelog verifier workflow

Signed-off-by: Matt Provost <[email protected]>

* Update changelog

Signed-off-by: Matt Provost <[email protected]>

---------

Signed-off-by: Matt Provost <[email protected]>

.github/pull_request_template.md

@@ -11,6 +11,7 @@
 - [ ] All tests pass
   - [ ] `yarn lint`
   - [ ] `yarn test-unit`
+- [ ] Update [CHANGELOG.md](./../CHANGELOG.md)
 - [ ] Commits are signed per the DCO using --signoff
 
 By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

.github/workflows/changelog_verifier.yml

@@ -0,0 +1,18 @@
+name: "Changelog Verifier"
+on:
+  pull_request:
+    branches: [ '**', '!feature/**' ]
+    types: [opened, edited, review_requested, synchronize, reopened, ready_for_review, labeled, unlabeled]
+
+jobs:
+  verify-changelog:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - uses: dangoslen/changelog-enforcer@v3
+        with:
+          skipLabels: "skip-changelog"

CHANGELOG.md

@@ -1,7 +1,29 @@
 # OUI
-## [`main`](https://github.com/opensearch-project/oui/tree/main)
 
-- Add release workflows ([134](https://github.com/opensearch-project/oui/pull/133))
+## [Unreleased](https://github.com/opensearch-project/oui/tree/main)
+
+### 💥 Breaking Changes
+
+### Deprecations
+
+### 🛡 Security
+
+### 📈 Features/Enhancements
+
+### 🐛 Bug Fixes
+
+### 🚞 Infrastructure
+
+- Add release workflows ([#134](https://github.com/opensearch-project/oui/pull/133))
+- Change PR template and add changelog workflow ([#642](https://github.com/opensearch-project/oui/pull/642))
+
+### 📝 Documentation
+
+### 🛠 Maintenance
+
+### 🪛 Refactoring
+
+### 🔩 Tests
 
 ## [`1.0.0`](https://github.com/opensearch-project/oui/tree/1.0.0)