[MM-54456] Fix potential read after write issue when loading license (#24524)

* Fix potential read after write issue when loading license

* Use upsert

server/channels/store/store.go

@@ -638,8 +638,8 @@ type PreferenceStore interface {
 }
 
 type LicenseStore interface {
-	Save(license *model.LicenseRecord) (*model.LicenseRecord, error)
-	Get(id string) (*model.LicenseRecord, error)
+	Save(license *model.LicenseRecord) error
+	Get(ctx context.Context, id string) (*model.LicenseRecord, error)
 	GetAll() ([]*model.LicenseRecord, error)
 }