update staging.yaml

[ci skip]
Merge remote-tracking branch 'origin/submissions-by-form' into submissions-by-form+commconnect-reports
Merge remote-tracking branch 'origin/commconnect-reports' into submissions-by-form+commconnect-reports

Conflicts:
	corehq/apps/es/es_query.py
	corehq/apps/es/forms.py
Update date histogram facet to use new facet system