package.xml: remove freeimage dependency

[scpeters]

🦟 Bug fix

Part of #1235.

Summary

It is no longer used on this branch since optix support was removed in #1204. Also remove it from windows CI.

Checklist

• Signed all commits for DCO
• Added a screen capture or video to the PR description that demonstrates the fix (as needed)
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• Updated Bazel files (if adding new files). Created an issue otherwise.
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