Use release metadata

.github/workflows/seqera_docs_changelog.yml

@@ -2,7 +2,6 @@ name: Push changelog to Seqera Docs
 on:
   release:
     types: [published]
-  workflow_dispatch:
 
 jobs:
   update-docs:
@@ -16,26 +15,30 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: "3.x"
+      - name: Create changelog file
+        run: |
+          mkdir -p seqeralabs-docs/changelog/wave
+          cat << EOF > seqeralabs-docs/changelog/wave/${{ github.event.release.name }}.mdx
+          ---
+          title: Wave ${{ github.event.release.name }}
+          date: $(date +%Y-%m-%d)
+          tags: [wave]
+          ---
 
-      - name: Convert changelog
-        id: convert
-        run: python ${GITHUB_WORKSPACE}/.github/workflows/seqera_docs_changelog.py
+          ${{ github.event.release.body }}
+          EOF
 
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v5
         with:
           token: ${{ secrets.SEQERALABS_DOCS_PAT }}
           path: seqeralabs-docs
-          commit-message: "Changelog: Wave ${{ steps.convert.outputs.version }}"
-          title: "Changelog: Wave ${{ steps.convert.outputs.version }}"
+          commit-message: "Changelog: Wave ${{ github.event.release.name }}"
+          title: "Changelog: Wave ${{ github.event.release.name }}"
           body: |
-            This PR adds the changelog for Wave ${{ steps.convert.outputs.version }} to the Seqera documentation.
+            This PR adds the changelog for Wave ${{ github.event.release.name }} to the Seqera documentation.
 
             This is an automated PR created from the Wave repository.
-          branch: changelog-wave-${{ steps.convert.outputs.version }}
+          branch: changelog-wave-${{ github.event.release.name }}
           base: master
           delete-branch: true