Add auto cherry-pick support for API_LEVEL_26

[fbeutin-ledger]

Description

Add auto cherry-pick support for API_LEVEL_26

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.82%. Comparing base (02245ba) to head (e0857a3).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1462   +/-   ##
=======================================
  Coverage   91.82%   91.82%           
=======================================
  Files          37       37           
  Lines        4244     4244           
  Branches      521      521           
=======================================
  Hits         3897     3897           
  Misses        257      257           
  Partials       90       90           

Flag	Coverage Δ
unittests	91.82% <ø> (ø)

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[Copilot]

Pull request overview

Updates the repository PR template to let authors request automated cherry-picks targeting the API_LEVEL_26 branch, aligning the template with the existing cherry-pick workflow that parses TARGET_API_LEVEL entries from PR bodies.

Changes:

• Add TARGET_API_LEVEL: API_LEVEL_26 as an option in the PR template’s auto cherry-pick section.

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