Distribute x64 and aarch64 Linux builds with PGO optimizations

[Kobzol]

Empirically this seems to make the resulting analysis-stats command ~20% faster.

[Veykril]

Nice, thanks!

[Kobzol]

I haven't really tested this on CI (only locally), so maybe it would also be a good idea to test the release workflow using manual execution (workflow_dispatch) to test that it works properly (it can be done after merge, it cannot be tested on a PR from a fork, AFAIK).

[ofek]

Does this not work on Windows?

[FilipAndersson245]

I believe there should be nothing limiting the use of pgo on windows? but this only enables it for linux.

[ofek]

Is there a reason why Windows was not enabled?

[Kobzol]

PGO is IIRC quite broke on macOS, but on Windows it should be working fine. I just included one platform for testing right now, to see if/how it works on CI. We can definitely expand it to Windows if we see that it works (I'm not sure if the code I wrote in xdist --pgo will work on Windows, but hopefully it should - would be nice to try).

[Kobzol]

It doesn't seem to work with cargo zigbuild :( (https://github.com/rust-lang/rust-analyzer/actions/runs/14448767429/job/40515878851) I guess we should revert it for now.