chore(deps): update sigstore/cosign-installer action to v3.8.0 (main)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
sigstore/cosign-installer	action	minor	v3.7.0 -> v3.8.0

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Release Notes

sigstore/cosign-installer (sigstore/cosign-installer)

v3.8.0

Compare Source

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.36%. Comparing base (90ae2c3) to head (13526b1).
Report is 1 commits behind head on main.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4408   +/-   ##
=======================================
  Coverage   64.36%   64.36%           
=======================================
  Files         402      402           
  Lines       26554    26554           
=======================================
  Hits        17092    17092           
  Misses       8151     8151           
  Partials     1311     1311           

Flag	Coverage Δ
unittests	64.36% <ø> (ø)

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