Add Hurl smoke tests for examples #2421

Job	Run time
compile_and_lint	1m 26s
windows_test	3m 5s
docker_build (linux/amd64, minimal)	9m 7s
docker_build (linux/arm64, duckdb)	10m 40s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	1m 58s
test (postgres, postgres, postgres://root:Password123!@127.0.0.1/sqlpage)	2m 29s
docker_build (linux/amd64, duckdb)	9m 32s
test (mysql, mysql, mysql://root:Password123!@127.0.0.1/sqlpage)	1m 38s
test (mssql, mssql, mssql://root:Password123!@127.0.0.1/sqlpage)	1m 53s
test (oracle, oracle, Driver=Oracle 21 ODBC driver;Dbq=//127.0.0.1:1521/FREEPDB1;Uid=root;Pwd=Pas...	2m 39s
docker_build (linux/arm/v7, minimal)	8m 53s
docker_build (linux/arm64, minimal)	10m 22s
docker_push	-1s
	1h 3m 41s

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