chore: suggest using a cast for float-float and int-int comparisons

[danking]

Resolves: #5364

As we gather less expert users, I think it's worthwhile to suggest to those users how to resolve a floating point mismatch error.

[codecov]

Codecov Report

❌ Patch coverage is 94.64286% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.03%. Comparing base (1aac9ca) to head (875e506).
⚠️ Report is 13 commits behind head on develop.

Files with missing lines	Patch %	Lines
vortex-array/src/compute/compare.rs	94.64%	3 Missing ⚠️

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