chore: add release-drafter (#35)

Author: yoshinorin

.github/release-drafter.yml

@@ -0,0 +1,28 @@
+name-template: 'v$NEXT_PATCH_VERSION'
+tag-template: 'v$NEXT_PATCH_VERSION'
+categories:
+  - title: 'Breaking change'
+    labels:
+      - 'Breaking Change'
+  - title: 'Features'
+    labels:
+      - 'feature'
+      - 'enhancement'
+  - title: 'Fixes'
+    labels:
+      - 'bug'
+  - title: 'Performance'
+    labels:
+      - 'performance'
+      - '#perfmatters'
+  - title: 'Dependencies'
+    labels:
+      - 'dependencies'
+  - title: 'Refactor'
+    labels:
+      - 'refactor'
+change-template: '- $TITLE @$AUTHOR [#$NUMBER]'
+template: |
+  ## Changes
+
+  $CHANGES

.github/workflows/release-drafter.yml

@@ -0,0 +1,14 @@
+name: Release Drafter
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}