Fix Windows ROCm tarball extraction and compiler paths #36

Job	Run time
windows-latest-cmake-hip	1h 40m 55s
ubuntu-latest-rocm (7.2, gfx908;gfx90a;gfx942;gfx1030;gfx1031;gfx1032;gfx1100;gfx1101;gfx1102;gfx...	4m 6s
ubuntu-latest-rocm (7.11.0, gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1100;gfx1101;gfx1102;gfx1150;gf...	2m 18s
release	0s
	1h 47m 19s

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