x/tools/gopls/internal/test/marker: tests are timing out on freebsd

[findleyr]

It looks like the freebsd builders recently started timing out.

However, the CL where this started is https://go.dev/cl/586878, which did not change any code linked by that test.
Therefore, this may be a builder issue, or perhaps a change in std triggered a change in performance.

(the marker tests are heavily affected by I/O. It looks like sometimes they finish in ~2m, but then timing spikes to 10m).

CC @zpavlinovic, who noticed this.

[findleyr]

I'll note that the LUCI freebsd builders are also broken, but are OK with Go 1.22 (dashboard). Also, the main repo freebsd builders are very unhappy (though perhaps just with TestVerifyCertificates).

Therefore, this points to some regression in the main repo.

CC @golang/release @golang/freebsd

[findleyr]

Looks like this was fixed along with #67585.