How to enable spectre-mitigated libs for 14.29 version?

[emmettlu]

   Compiling msvc_spectre_libs v0.1.3
warning: msvc_spectre_libs@0.1.3: No spectre-mitigated libs were found. Please modify the VS Installation to add these.
error: failed to run custom build command for `msvc_spectre_libs v0.1.3`

The original actions were written:

steps:
      - name: Setup MSVC
        uses: ilammy/msvc-dev-cmd@v1
        with:
          arch: amd64
          toolset: 14.29

How to enable spectre-mitigated libs?