Added auto-release workflows

.github/release.yml

@@ -0,0 +1,17 @@
+changelog:
+  exclude:
+    authors:
+      - pre-commit-ci
+  categories:
+    - title: Bug Fixes
+      labels:
+        - bug
+    - title: New Features
+      labels:
+        - enhancement
+    - title: Documentation
+      labels:
+        - Documentation
+    - title: Other Changes
+      labels:
+        - "*"

.github/workflows/update-changelog.yaml

@@ -0,0 +1,33 @@
+# This workflow takes the GitHub release notes an updates the changelog on the
+# main branch with the body of the release notes, thereby keeping a log in
+# the git repo of the changes.
+
+name: "Update Changelog"
+
+on:
+  release:
+    types: [released]
+
+jobs:
+  update:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: main
+
+      - name: Update Changelog
+        uses: stefanzweifel/changelog-updater-action@v1
+        with:
+          release-notes: ${{ github.event.release.body }}
+          latest-version: ${{ github.event.release.name }}
+          path-to-changelog: CHANGES.md
+
+      - name: Commit updated CHANGELOG
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          branch: main
+          commit_message: Update CHANGELOG
+          file_pattern: CHANGES.md