fix ipv6 notation #1923

Job	Run time
test (mysql, mysql, mysql://root:[email protected]/sqlpage)	1m 41s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	2m 39s
test (mssql, mssql, mssql://root:[email protected]/sqlpage)	2m 8s
compile_and_lint	2m 2s
test (postgres, postgres, postgres://root:[email protected]/sqlpage)	1m 54s
docker_build (linux/arm/v7)	5m 7s
docker_build (linux/amd64)	4m 58s
docker_build (linux/arm64)	5m 36s
windows_test	5m 7s
docker_push	0s
	31m 12s

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