[MIG] report_xlsx: Migration to 12.0

* refactor: On new ActionManager override _makeReportUrls and triggerDownload to support XLSX format
* pass action to custom _downloadReportXLSX: Need action to get report data
* dict constructor to remove context lang

report_xlsx/report/report_xlsx.py

@@ -16,6 +16,7 @@ except ImportError:
 
 class ReportXlsxAbstract(models.AbstractModel):
     _name = 'report.report_xlsx.abstract'
+    _description = 'Abstract XLSX Report'
 
     def _get_objs_for_report(self, docids, data):
         """