Add changelog workflow

.github/workflows/changelog.yml

@@ -0,0 +1,34 @@
+name: Changelog Generator
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  generate_changelog:
+    runs-on: ubuntu-latest
+    name: Update changelog
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Generate changelog
+        uses: charmixer/auto-changelog-action@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Commit changelog file changes
+        env:
+          CI_USER: ${{ secrets.YOUR_GITHUB_USER }}
+          CI_EMAIL: ${{ secrets.YOUR_GITHUB_EMAIL }}
+        run: |
+          git config --local user.email "shahnh19@gmail.com"
+          git config --local user.name "NeelayS"
+          git add CHANGELOG.md && git commit -m 'Updated CHANGELOG.md' && echo "push=true" >> $GITHUB_ENV || echo "No changes to CHANGELOG.md"
+
+      - name: Push changes
+        if: env.push == 'true'
+        env:
+          CI_USER: ${{ secrets.YOUR_GITHUB_USER }}
+          CI_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git push "https://$CI_USER:$CI_TOKEN@github.com/$GITHUB_REPOSITORY.git" HEAD:main