fix: Make sure schema is used when calling `get_table_query_string` method for Snowflake datasource#4131

jeremyary merged 2 commits intofeast-dev:masterfeast-dev/feast:masterfrom

TomSteenbergen:fix_snowflake_get_table_query_stringTomSteenbergen/feast:fix_snowflake_get_table_query_stringCopy head branch name to clipboard