Ignore AI tool related files #12521

Job	Run time
Windows 2025/Visual C++ 2022 (check)	57m 39s
Windows 2025/Visual C++ 2022 (test-bundled-gems)	51m 29s
Windows 11-arm/Visual C++ (btest test-basic test-tool)	1h 4m 3s
Windows 2022/Visual C++ 2022 (check)	49m 53s
Windows result	3s
	3h 43m 7s

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