[libpq] fix build with non-English MSVC (#26921)

[ArcticLampyrid]

• What does your PR fix?

  Fixes [libpq] build failure #26921

• Does your PR follow the maintainer guide?

  Yes

[ArcticLampyrid]

With Chinese language pack, we'll get

用于 x64 的 Microsoft (R) C/C++ 优化编译器 19.33.31630 版

The keyword x64 is not at the end of a line.

[github-actions]

This is a new experimental fast check for PR issues. Please let us know if this bot is helpful!

PRs must add only one version and must not modify any published versions

When making any changes to a library, the version or port-version in vcpkg.json or CONTROL must be modified.

error: checked-in files for libpq have changed but the version was not updated
version: 14.4#2
old SHA: d452cd83bf4c62032f2ecbf66b23d75261f6ed88
new SHA: ff1fb58229c0d2759dd872d5187ad8c0b29f46de
Did you remember to update the version or port version?
Use --overwrite-version to bypass this check
***No files were updated***

[ArcticLampyrid]

@microsoft-github-policy-service agree

[FrankXie05]

@gamesyule Could you test this PR?

[dg0yt]

Note that the English language pack is a documented requirement for vcpkg. Even if this port is fixed, you are likely to run into trouble with other ports.
https://github.com/microsoft/vcpkg#quick-start-windows

[BillyONeal]

Note that the English language pack is a documented requirement for vcpkg.

We need to fix that if we want to go 'in the box' :)

[BillyONeal]

Thanks for the fix!