[WIP] Fix failing GitHub Actions job clang-cl-forcefallback-x64

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Fix the failing GitHub Actions job "clang-cl-forcefallback-x64"
Analyze the Actions logs, identify the root cause of the failure, and implement a fix.
Check run ID: 81372267850
Job URL: https://github.com/Exiv2/exiv2/actions/runs/27502556365/job/81372267850

[kevinbackhouse]

@copilot: it's still failing

[Copilot]

@copilot: it's still failing

Fixed in 9a85479. I removed -Ddefault_library=static from the clang-cl Meson ASan job so the ASan runtime can link correctly on Windows.