fix explain tests for testFilterPushDownExplain #107

Job	Run time
security-it-windows-macos (windows-latest, 21)	6m 15s
security-it-windows-macos (windows-latest, 25)	6m 59s
Get-CI-Image-Tag / Get-CI-Image-Tag	6s
security-it-windows-macos (macos-14, 25)	4m 29s
security-it-windows-macos (macos-14, 21)	4m 30s
security-it-linux (25)	5m 48s
security-it-linux (21)	6m 7s
	34m 14s

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