chore(actions): Add `release-drafter` action (#496)

Adds the [`release-drafter` action](https://github.com/release-drafter/release-drafter) to this repository.
It listens on PRs merged to `master` and updates a _draft release_ based on the changes.

If a PR has the label `Topic: CI/CD` when being merged it will be excluded from the draft changelog.

.github/release-drafter-config.yml

@@ -0,0 +1,22 @@
+name-template: 'Draft for v$NEXT_MINOR_VERSION'
+tag-template: 'v$NEXT_MINOR_VERSION'
+
+categories:
+  - title: '🚀 Features'
+    labels:
+      - 'Type: Enhancement'
+  - title: '🐛 Bug Fixes'
+    labels:
+      - 'Type: Bug'
+  - title: '🧰 Maintenance'
+    label: 'Type: Maintenance'
+
+change-template: '- #$NUMBER $TITLE (@$AUTHOR)'
+
+exclude-labels:
+  - 'Topic: CI/CD'
+
+template: |
+  ## Changes
+
+  $CHANGES

.github/workflows/release-drafter.yml

@@ -0,0 +1,18 @@
+name: Release Drafter
+
+on:
+  push:
+    # branches to consider in the event; optional, defaults to all
+    branches:
+      - master
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      # Drafts your next Release notes as Pull Requests are merged into "master"
+      - uses: release-drafter/release-drafter@v5
+        with:
+          config-name: release-drafter-config.yml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}