feat(storage): read only transactions (#6417)

feat(storage): read only transactions for queries (#6415)

* fix: tests

* bastle wie en grosse

* fix(database): scan as callback

* fix tests

* fix merge failures

* remove as of system time

* refactor: remove unused test

* refacotr: remove unused lines

internal/query/failed_events_test.go

@@ -146,7 +146,7 @@ func Test_FailedEventsPrepares(t *testing.T) {
 					return nil, true
 				},
 			},
-			object: nil,
+			object: (*FailedEvents)(nil),
 		},
 	}
 	for _, tt := range tests {