[MWPW-165793] aside temporary double background check added

[DKos95]

This adds a double check for the background color allowing us to change color via authoring after merge without bringing down tests for everyone else and fixing the accessibility color contrast issue. After merging and authoring the background color, a new PR will be made to revert back to checking only the single new background color.

Resolves: MWPW-165793

Test URLs:

• Before: https://main--milo--adobecom.hlx.live/drafts/nala/blocks/aside/aside-small?martech=off
• After: https://aside-small-background-fix--milo--adobecom.aem.page/drafts/nala/blocks/aside/aside-small?martech=off

[aem-code-sync]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed.
In case there are problems, just click a checkbox below to rerun the respective action.

• Re-run PSI checks
• Re-sync branch

Commits

• ae1f453 ✅ (latest)
• 9c1c5e6 ✅
• 99d9723 ✅

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/drafts/nala/blocks/aside/aside-small?martech=off
🖥️	/drafts/nala/blocks/aside/aside-small?martech=off

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.47%. Comparing base (66f90cb) to head (ae1f453).
Report is 15 commits behind head on stage.

Additional details and impacted files

@@           Coverage Diff            @@
##            stage    #3514    +/-   ##
========================================
  Coverage   96.46%   96.47%            
========================================
  Files         259      260     +1     
  Lines       60217    60415   +198     
========================================
+ Hits        58090    58284   +194     
- Misses       2127     2131     +4     

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[skumar09]

looks good..

[github-actions]

Reminder to set the Ready for Stage label - to queue this to get merged to stage & production.