Merge pull request #8752 from ClickHouse/insert_float_as_nullable_uint8_test

Added a test from Zlobober #5610

dbms/tests/queries/0_stateless/01069_insert_float_as_nullable_unit8.reference

+2
+2

dbms/tests/queries/0_stateless/01069_insert_float_as_nullable_unit8.sql

+create temporary table t1 (a Nullable(UInt8));
+insert into t1 values (2.4);
+select * from t1;
+
+create temporary table t2 (a UInt8);
+insert into t2 values (2.4);
+select * from t2;