Eliminate a number of memory leaks in tests (#12414) #2399

Job	Run time
🏷 Append labels to PR / Database-change-labels	8s
🏷 Append labels to PR / Base-change-labels	8s
🏷 Append labels to PR / AWS-change-labels	8s
🏷 Append labels to PR / Image-change-labels	7s
🏷 Append labels to PR / Google_Api-change-labels	6s
🏷 Append labels to PR / Microsoft-change-labels	6s
🏷 Append labels to PR / Snowflake-change-labels	8s
🏷 Append labels to PR / Tableau-change-labels	6s
🏷 Append labels to PR / Table-change-labels	5s
🏷 Append labels to PR / Test-change-labels	6s
🔍 Files Changed / Changed Files	6s
🏷 Append labels to PR / Visualization-change-labels	6s
⚙️ Checks (Optional) / Engine (GraalVM CE) (macos, amd64)	1h 54m 10s
⚙️ Checks (Optional) / JVM Tests (GraalVM CE) (macos, amd64)	59m 49s
⚙️ Checks (Optional) / Standard Library Tests (GraalVM CE) (macos, amd64)	51m 58s
⚙️ Checks / Engine (GraalVM CE) (linux, amd64)	42m 14s
⚙️ Checks / Engine (GraalVM CE) (windows, amd64)	41m 16s
⚙️ Checks / JVM Tests (GraalVM CE) (linux, amd64)	28m 10s
⚙️ Checks / JVM Tests (GraalVM CE) (windows, amd64)	1h 50m 50s
⚙️ Checks / Standard Library API check (linux, amd64)	8m 47s
⚙️ Checks / Standard Library Tests (GraalVM CE) (linux, amd64)	36m 29s
⚙️ Checks / Standard Library Tests (GraalVM CE) (windows, amd64)	33m 52s
⚙️ Checks / Verify License Packages (linux, amd64)	5m 11s
Engine Required Checks	1s
	8h 54m 7s

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