chore: set up release drafter (#11)

.github/release-drafter.yml

@@ -0,0 +1,51 @@
+name-template: 'v$RESOLVED_VERSION'
+tag-template: 'v$RESOLVED_VERSION'
+change-template: '* $TITLE (#$NUMBER) by @$AUTHOR'
+template: |
+  $CHANGES
+
+  **Full Changelog**: https://github.com/$OWNER/$REPOSITORY/compare/$PREVIOUS_TAG...v$RESOLVED_VERSION
+
+sort-direction: ascending
+
+categories:
+  - title: '⚠️ BREAKING CHANGES'
+    label: 'breaking'
+  - title: '💫 Features'
+    label: 'feature'
+  - title: '🛠️ Bug fixes'
+    label: 'fix'
+  - title: '🕹️ Others'
+    label: 'chore'
+
+version-resolver:
+  # Major is not meant to be used at the moment.
+  # Should be used with label breaking in the future.
+  major:
+    labels:
+      - 'major'
+  minor:
+    labels:
+      - 'breaking'
+      - 'feature'
+      - 'chore'
+  patch:
+    labels:
+      - 'fix'
+
+exclude-labels:
+  - 'skip-changelog'
+
+autolabeler:
+  - label: 'breaking'
+    title:
+      - '/!:/i'
+  - label: 'chore'
+    title:
+      - '/^chore/i'
+  - label: 'fix'
+    title:
+      - '/^fix/i'
+  - label: 'feature'
+    title:
+      - '/^feat/i'

.github/workflows/pr-title.yaml

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+name: 'Validate PR title'
+
+on:
+  pull_request:
+    branches: [ main ]
+    types: [ opened, reopened, synchronize ]
+
+permissions:
+  pull-requests: read
+  statuses: write
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      # Please look up the latest version from
+      # https://github.com/amannn/action-semantic-pull-request/releases
+      - uses: amannn/action-semantic-pull-request@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          types: |
+            fix
+            feat
+            chore
+          requireScope: false
+          wip: true
+          validateSingleCommit: false

.github/workflows/release-drafter.yaml

@@ -0,0 +1,22 @@
+name: Release Drafter
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+    types: [ opened, reopened, synchronize ]
+
+permissions:
+  contents: read
+
+jobs:
+  update_release_draft:
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}