cmd/cgo/internal/testsanitizers: TestLSAN/lsan1,2, and 3 always fail on linux with glibc 2.42 [1.25 backport]

[gopherbot]

@prattmic requested issue #74476 to be considered for backport to the next 1.25 minor release.

@gopherbot Please backport to 1.25 and 1.26. This is an existing bug that causes crashes with ASAN + leak detection (LSAN) when used with glibc 2.42+.

[gopherbot]

Change https://go.dev/cl/767021 mentions this issue: [release-branch.go1.25] runtime: add sysUnreserve to undo sysReserve