Enhance error message during PrincipalID resolution

[smoy]

What changed?

• Enhance error message during PrincipalID resolution. This allow to admin to easily grep for logs where PrincipalID cannot be resolved. We have observed instances IdentityCenter assignments are orphaned when user is already removed from Active Directory
• Read an environment variable to skip a non-resolvable PrincipalID

Rationale

• allow to admin to easily grep for logs where PrincipalID cannot be resolved.
• Have to fall back to environment variable because that util function does not have a handle to the config object.

How was it tested?

If it was manually verified, list the instructions for your reviewers to follow.

• [ ] Unit Tests
• [ ] Functional Tests
• [ ] Manually Verified

[codecov[bot]]

Codecov Report

Patch coverage: 26.31% and project coverage change: -3.77% :warning:

Comparison is base (e3f5f0c) 83.01% compared to head (9e3b0b3) 79.25%. Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #599 +/- ## ========================================== - Coverage 83.01% 79.25% -3.77% ========================================== Files 105 106 +1 Lines 12549 13661 +1112 ========================================== + Hits 10418 10827 +409 - Misses 2131 2834 +703 ``` | [Flag](https://app.codecov.io/gh/noqdev/iambic/pull/599/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev) | Coverage Δ | | |---|---|---| | [functional_tests](https://app.codecov.io/gh/noqdev/iambic/pull/599/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev) | `63.74% <26.31%> (-1.80%)` | :arrow_down: | | [functional_tests_config_discovery](https://app.codecov.io/gh/noqdev/iambic/pull/599/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev) | `45.77% <26.31%> (-0.02%)` | :arrow_down: | | [unit_tests](https://app.codecov.io/gh/noqdev/iambic/pull/599/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev) | `73.25% <15.78%> (-0.06%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files Changed](https://app.codecov.io/gh/noqdev/iambic/pull/599?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev) | Coverage Δ | | |---|---|---| | [...v0\_1\_0/aws/identity\_center/permission\_set/utils.py](https://app.codecov.io/gh/noqdev/iambic/pull/599?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev#diff-aWFtYmljL3BsdWdpbnMvdjBfMV8wL2F3cy9pZGVudGl0eV9jZW50ZXIvcGVybWlzc2lvbl9zZXQvdXRpbHMucHk=) | `87.01% <26.31%> (-1.49%)` | :arrow_down: | ... and [7 files with indirect coverage changes](https://app.codecov.io/gh/noqdev/iambic/pull/599/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=noqdev)

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[dushyantbhardwaj9]

Hi,

I checked out the branch and tried it in my env. This works!

Thanks @smoy ! You rock