[CIS AWS] fail to parse root account password last used, error: parsing time "no_information"

[romulets]

Motivation
About

example

fail to parse root account password last used, error: parsing time "no_information" as "2006-01-02T15:04:05Z07:00": cannot parse "no_information" as "2006"

Validated by

aws iam get-credential-report --no-cli-pager | jq .Content -r | base64 --decode | csvcut -c user,password_last_used

I can see multiple no_informations, and the docs also states the no_information as a valid value.

We need to validate the value before trying to convert and allowing lastUsed to be nil

Definition of done

• validate if the PasswordLastUsed has value no_information. If it has, don't convert and keep pwdLastUsed nil.

Out of scope
What should not be included in this task

Related tasks/epics

• Found on https://github.com/elastic/security-team/issues/8219#issuecomment-1870039617
• Investigated on https://github.com/elastic/security-team/issues/7932#issuecomment-1871117227

[kubasobon]

Fixed (code) as part of #2050