add lzma to gitignore #1002

Job	Run time
prepare	9s
prepare-static-dependencies	28s
build-linux (ubuntu-static-link)	3m 6s
build-macos (macos-26-arm-static-link)	2m 8s
build-macos (macos-26-arm)	1m 20s
build-macos (macos-15-intel)	4m 3s
build-windows (windows-x64-avx2)	3m 33s
build-macos (macos-26-intel-cross-compile-static-link)	1m 43s
build-linux (ubuntu-22)	2m 6s
build-linux (ubuntu-arm-static-link)	2m 42s
build-windows (windows-arm64)	3m 15s
build-windows (windows-2025)	3m 57s
build-windows (windows-x86-sse2)	3m 40s
build-windows (windows-x64-no-simd)	3m 30s
build-linux (ubuntu-24)	1m 47s
	37m 27s

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