Enhancement: Automatically generate release body

.github/workflows/release.yaml

@@ -14,16 +14,37 @@ jobs:
     runs-on: "ubuntu-latest"
 
     steps:
-      - name: "Determine tag"
-        id: "determine-tag"
-        run: "echo \"::set-output name=tag::${GITHUB_REF#refs/tags/}\""
+      - name: "Determine release tag"
+        run: "echo \"RELEASE_TAG=${GITHUB_REF#refs/tags/}\" >> $GITHUB_ENV"
+
+      - name: "Determine release body"
+        uses: "actions/github-script@v5"
+        with:
+          github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
+          script: |
+            const repository = context.repo;
+
+            const response = await github.rest.repos.generateReleaseNotes({
+              owner: repository.owner,
+              repo: repository.repo,
+              tag_name: "${{ env.RELEASE_TAG }}",
+            })
+
+            core.exportVariable("RELEASE_BODY", response.data.body)
 
       - name: "Create release"
-        uses: "actions/[email protected]"
-        env:
-          GITHUB_TOKEN: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
+        uses: "actions/github-script@v5"
         with:
-          draft: false
-          prerelease: false
-          release_name: "${{ steps.determine-tag.outputs.tag }}"
-          tag_name: "${{ steps.determine-tag.outputs.tag }}"
+          github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
+          script: |
+            const repository = context.repo
+
+            await github.rest.repos.createRelease({
+              body: "${{ env.RELEASE_BODY }}",
+              draft: false,
+              name: "${{ env.RELEASE_TAG }}",
+              owner: repository.owner,
+              prerelease: false,
+              repo: repository.repo,
+              tag_name: "${{ env.RELEASE_TAG }}",
+            })