Auto label nala PRs as zero impact

[mokimo]

Description

Nala PRs do not impact production in any way, hence can always be included in a batch at any point.

Test URLs:

• Before: https://main--milo--adobecom.hlx.page/?martech=off
• After: https://add-nala-to-zero-impact--milo--mokimo.hlx.page/?martech=off

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/?martech=off
🖥️	/?martech=off

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.27%. Comparing base (c5e352f) to head (2434e7a).
Report is 2 commits behind head on stage.

Additional details and impacted files

@@            Coverage Diff             @@
##            stage    #2936      +/-   ##
==========================================
- Coverage   98.21%   96.27%   -1.94%     
==========================================
  Files          64      238     +174     
  Lines        7848    54515   +46667     
==========================================
+ Hits         7708    52485   +44777     
- Misses        140     2030    +1890     

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[mokimo]

I'll manually merge this given the approvals and this being zero impact.