Use release drafter to draft releases

.github/workflows/labels.yml

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+name: Sync labels
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - .github/labels.yml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: micnncim/action-label-syncer@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.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
+
+jobs:
+  update_release_draft:
+    if: github.repository == 'pylast/pylast'
+    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 }}