SQL Parser: TSQL dialect supports single quotes for column aliases, but the parser does not

[alexs-101]

T-SQL allows to define aliases in 4 different ways, for example

SELECT
    c1 as c1_alias,
    c2 as [c2_alias],
    c3 as "c3_alias",
    c4 as 'c4_alias'
FROM
    tbl
The fix adds support of 4th case
SELECT
    c4 as 'c4_alias'
FROM
    tbl

The SQL Parser supports all except c4 as 'c4_alias', that's due to bug in T-SQL dialect definition of sqlglot library

The fix is by the link
https://github.com/datahub-project/datahub/pull/9838/files

[alexs-101]

I removed the fix from my PR, because found that it was fixed in most recent version of SQLGlot tobymao/sqlglot@d31ae0d. Could you update the fork acryl-sqlglot to the most recent version, please?