WIP: fixed humanize memory bug

[omerap12]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #7770

Special notes for your reviewer:

As I dug into this I came into the conclusion that resource.Quantity does not guarantee that it will preserve the exact unit and decimal format when printing.
It normalizes values internally, and when calling .String(), it may convert the quantity to a different unit to avoid fractions.
See the following code: https://go.dev/play/p/1Yt1D-viR1E

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

Updated docs

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This pull-request has been approved by: omerap12
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