Add semicolon to the end of the `ALTER ` SQL, test will panic

[miuy56dc]

I change the test in sqlparser_common.rs https://github.com/ballista-compute/sqlparser-rs/blob/f053383c718b3d4942751224783c594ff7e9f0b1/tests/sqlparser_common.rs#L1380
change "ALTER TABLE tab ADD COLUMN foo TEXT" to "ALTER TABLE tab ADD COLUMN foo TEXT;", add a semicolon at the end of the SQL, when I rerun the test it reports

---- parse_alter_table stdout ----
thread 'parse_alter_table' panicked at 'called `Result::unwrap()` on an `Err` value: ParserError("Expected column option, found: ;")', src/test_utils.rs:70:30

[nickolay]

Yeah, seems like in #203 we should have made the match in parse_column_def context-dependent...