Fix #5075: Exempt Existing Vectors from ColorHex Checks

[adhiamboperes]

Explanation

Fixes #5075.
This PR adds back the color hex regex check removed in #5076. This requires a static check exemption for two vectors in the drawable directory, survey_nps_radio_selected_color.xml and survey_nps_radio_unselected_color.xml.

The check file_path_regex: "app/src/main/res/drawable.*?/.+?\\.xml" blanket checks all drawables, including vectors. Since these cannot fully be changed to use component colors yet, I think that the best approach is to exempt them from the check.

This is a replacement of PR #5081, since #5081 would nolonger be a clean revert.

Essential Checklist

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[BenHenning]

Thanks @adhiamboperes! Took a pass and left a couple of follow-ups--PTAL.

[oppiabot]

Hi @adhiamboperes, I'm going to mark this PR as stale because it hasn't had any updates for 7 days. If no further activity occurs within 7 days, it will be automatically closed so that others can take up the issue.
If you are still working on this PR, please make a follow-up commit within 3 days (and submit it for review, if applicable). Please also let us know if you are stuck so we can help you!

[BenHenning]

Thanks @adhiamboperes! LGTM.

[BenHenning]

Enabling auto-merge since there are no outstanding comments to address.

[oppiabot]

Unassigning @BenHenning since they have already approved the PR.

[oppiabot]

Hi @adhiamboperes, this PR is ready to be merged. Please address any remaining comments prior to merging, and feel free to merge this PR once the CI checks pass and you're happy with it. Thanks!