[faiss] Add required OpenMP dependency

[SunBlack]

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version, or no changes were necessary.
• Any fixed CI baseline and CI feature baseline entries are removed from that file, or no entries needed to be changed.
• All patch files in the port are applied and succeed.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Exactly one version is added in each modified versions file.

The CI failed in #52616, due to

CMake Error at /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:290 (message):
  Could NOT find OpenMP_CXX (missing: OpenMP_CXX_FLAGS OpenMP_CXX_LIB_NAMES)
Call Stack (most recent call first):
  /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:654 (_FPHSA_FAILURE_MESSAGE)
  /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindOpenMP.cmake:734 (find_package_handle_standard_args)
  /Users/vcpkg/Data/work/1/s/scripts/buildsystems/vcpkg.cmake:939 (_find_package)
  faiss/CMakeLists.txt:696 (find_package)

Draft to verify the issue first with a forces rebuild due to changed port-version.

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[dg0yt]

The CI failed in #52616, due to

CMake Error at /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:290 (message):
  Could NOT find OpenMP_CXX (missing: OpenMP_CXX_FLAGS OpenMP_CXX_LIB_NAMES)
Call Stack (most recent call first):
  /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:654 (_FPHSA_FAILURE_MESSAGE)
  /Users/vcpkg/Data/work/1/s/downloads/tools/cmake-4.3.3-osx/cmake-4.3.3-macos-universal/CMake.app/Contents/share/cmake-4.3/Modules/FindOpenMP.cmake:734 (find_package_handle_standard_args)
  /Users/vcpkg/Data/work/1/s/scripts/buildsystems/vcpkg.cmake:939 (_find_package)
  faiss/CMakeLists.txt:696 (find_package)

faiss is an expected failure in vcpkg CI for osx, due to the Apple toolchain lacking OpenMP support. Probably the CI failed for a different reason, but a log is not available.

[SunBlack]

Probably the CI failed for a different reason, but a log is not available.

I still have the CI log archive locally, in case you want to take a look (faiss, octave, and qtdeclarative failed there). I initially only checked faiss, and what’s interesting is that it requires OpenMP but doesn’t define it as a direct dependency, so I wanted to test whether adding that might fix the issue. What was interesting, though, was this: Simply increasing the port version to trigger a rebuild didn't cause the CI to fail. But rebashing it against the sqlite3 commit did. Since it seems to be running through again now, I’m considering whether to just close this test or to explicitly add OpenMP after all. Do you have any thoughts on this?