perf(cubesql): Avoid allocations in MetaContext methods #19972

Job	Run time
latest-tag-sha	22s
build	10m 14s
lint	5m 5s
unit (20.x, 3.11, false, false)	20m 22s
build-cubestore	4m 10s
Build & Test :dev for Debian without pushing	26m 55s
unit (20.x, 3.11, false, true)	19m 53s
unit (20.x, 3.11, true, false)	20m 35s
unit (22.x, 3.11, false, false)	20m 10s
unit (22.x, 3.11, false, true)	19m 45s
unit (22.x, 3.11, true, false)	20m 32s
integration-cubestore (20.x)	14m 7s
integration-smoke (20.x, 3.11)	23m 8s
docker-image-latest-set-tag	3s
integration (20.x, clickhouse)	11m 52s
integration (20.x, druid)	11m 41s
integration (20.x, elasticsearch)	11m 13s
integration (20.x, mssql)	11m 44s
integration (20.x, mysql)	12m 22s
integration (20.x, postgres)	12m 54s
integration (20.x, prestodb)	11m 34s
integration (20.x, mysql-aurora-serverless)	11m 6s
integration (20.x, crate)	11m 9s
integration (20.x, mongobi)	11m 8s
integration (20.x, firebolt)	10m 59s
integration (20.x, dremio)	12m 40s
integration (20.x, vertica)	11m 34s
	5h 57m 17s

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