fix official site migrations page title #2184

Job	Run time
compile_and_lint	1m 53s
docker_build (linux/amd64, duckdb)	5m 21s
docker_build (linux/arm64, minimal)	6m 4s
docker_build (linux/arm64, duckdb)	5m 54s
windows_test	4m 28s
test (mssql, mssql, mssql://root:Password123!@127.0.0.1/sqlpage)	2m 31s
test (mysql, mysql, mysql://root:Password123!@127.0.0.1/sqlpage)	2m 6s
test (oracle, oracle, Driver=Oracle 21 ODBC driver;Dbq=//127.0.0.1:1521/FREEPDB1;Uid=root;Pwd=Pas...	3m 20s
test (postgres, postgres, postgres://root:Password123!@127.0.0.1/sqlpage)	2m 21s
docker_build (linux/amd64, minimal)	5m 16s
docker_build (linux/arm/v7, minimal)	5m 42s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	2m 24s
docker_push (minimal)	21s
docker_push (duckdb)	22s
	48m 3s

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