Limit type size assertion to 64bit platforms

[MichaReiser]

Summary

Fix 32bit release builds by limiting the Type size assertion to 64bit architectures.

32 and 64 bit architectures have different sizes because the size of a string slice differs (because of pointer size)

[github-actions[bot]]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

[sharkdp]

Thanks