fix building release notes

Author: marle3003

.github/actions/build-release-notes/action.yml

@@ -6,12 +6,13 @@ runs:
     - name: Write release notes
       shell: bash
       run: |
-        VERSION="${{ github.event.release.tag_name }}"
-        cat <<'EOF' > docs/release.md
-        # Mokapi ${{ github.event.release.tag_name }}
-  
-        ${{ github.event.release.body }}
-        EOF
+        VERSION=$(jq -r '.release.tag_name' "$GITHUB_EVENT_PATH")
+        BODY=$(jq -r '.release.body' "$GITHUB_EVENT_PATH")
+        {
+          echo "# Mokapi $VERSION"
+          echo
+          echo "$BODY"
+        } > docs/release.md
     - name: Upload UI artifact
       uses: actions/upload-artifact@v4
       with: