Tests

Simplify http testing #471

Job	Run time
Extension / FlightSQL (amd64)	5m 50s
Core (amd64)	3m 27s
Extension / UDFs-WASM (amd64)	3m 41s
Crate / UDFs-WASM (amd64)	8m 15s
Extension / Auth (amd64)	8m 37s
Crate / Functions-Parquet (amd64)	5m 41s
Crate / DataFusion-App (amd64)	7m 47s
Extension / S3 (amd64)	8m 1s
Extension / Functions-JSON (amd64)	5m 54s
Extension / Deltalake (amd64)	6m 43s
Extension / HTTP Server (amd64)	8m 14s
	1h 12m 10s

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