Improve CI Docker cache reuse #2468

Job	Run time
windows_test	3m 43s
compile_and_lint	2m 17s
hurl_examples	5s
docker_build (linux/amd64, minimal)	5m 40s
docker_build (linux/arm64, minimal)	5m 40s
docker_build (linux/arm/v7, minimal)	5m 41s
docker_build (linux/arm64, duckdb)	5m 40s
docker_build (linux/amd64, duckdb)	5m 40s
playwright	58s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	1m 31s
test (mssql, mssql, mssql://root:Password123!@127.0.0.1/sqlpage)	1m 11s
test (mysql, mysql, mysql://root:Password123!@127.0.0.1/sqlpage)	55s
test (postgres, postgres, postgres://root:Password123!@127.0.0.1/sqlpage)	1m 18s
test (oracle, oracle, Driver=Oracle 21 ODBC driver;Dbq=//127.0.0.1:1521/FREEPDB1;Uid=root;Pwd=Pas...	2m 8s
hurl (${{ matrix.example }})	1s
docker_push	1s
	42m 29s

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