Automate release notes generation (#368)

.github/release-drafter.yml

@@ -0,0 +1,42 @@
+name-template: "v$RESOLVED_VERSION"
+tag-template: "v$RESOLVED_VERSION"
+autolabeler:
+    - label: "Type: Enhancement"
+      branch: '/feature\/.+/'
+    - label: "Type: Bug"
+      branch: '/(bug)?fix\/.+/'
+      title: "/fix/i"
+    - label: "Type: Documentation"
+      files: "*.rst"
+      branch: '/docs{0,1}\/.+/'
+    - label: "Type: DevOps"
+      branch: '/devops\/.+/'
+categories:
+    - title: "Features"
+      labels: "Type: Enhancement"
+    - title: "Bug Fixes"
+      labels: "Type: Bug"
+    - title: "Documentation"
+      label: "Type: Documentation"
+    - title: "DevOps"
+      label: "Type: DevOps"
+change-template: "- $TITLE by @$AUTHOR in $URL"
+change-title-escapes: '\<*_&' # You can add # and @ to disable mentions, and add ` to disable code blocks.
+exclude-labels: "skip-changelog"
+version-resolver:
+    major:
+        labels:
+            - "major"
+    minor:
+        labels:
+            - "minor"
+    patch:
+        labels:
+            - "patch"
+    default: patch
+template: |
+    ## Changes
+
+    $CHANGES
+footer: |
+    **Full Changelog**: https://github.com/xCDAT/xcdat/compare/$PREVIOUS_TAG...$RESOLVED_VERSION

.github/workflows/release-drafter.yml

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+name: Release Drafter
+
+on:
+  push:
+    # branches to consider in the event; optional, defaults to all
+    branches:
+      - master
+  # pull_request event is required only for autolabeler
+  pull_request:
+    # Only following types are handled by the action, but one can default to all as well
+    types: [opened, reopened, synchronize]
+
+permissions:
+  contents: read
+
+jobs:
+  update_release_draft:
+    permissions:
+      # write permission is required to create a github release
+      contents: write
+      # write permission is required for autolabeler
+      # otherwise, read permission is required at least
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      # Drafts your next Release notes as Pull Requests are merged into "master"
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}