ci: upgrade vercel cli version to newer

[Zaimwa9]

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[vercel]

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Project	Deployment	Actions	Updated (UTC)
docs	Ready	Preview, Comment	Apr 16, 2026 4:37pm
flagsmith-frontend-preview	Ready	Preview, Comment	Apr 16, 2026 4:37pm
flagsmith-frontend-staging	Ready	Preview, Comment	Apr 16, 2026 4:37pm

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[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-7267	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-7267	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-7267	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api:pr-7267	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-7267	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7267	Finished ✅	Results ✅

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.29%. Comparing base (24718e9) to head (6e34af9).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7267   +/-   ##
=======================================
  Coverage   98.29%   98.29%           
=======================================
  Files        1357     1357           
  Lines       50851    50851           
=======================================
  Hits        49984    49984           
  Misses        867      867           

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[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-16)

 11 passed

Details

 11 tests across 8 suites
 46.5 seconds
 6e34af9
 🔄 Run: #16127 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 11 passed

Details

 11 tests across 8 suites
 51.5 seconds
 6e34af9
 🔄 Run: #16127 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 17 passed

Details

 17 tests across 14 suites
 1 minute, 1 second
 6e34af9
 🔄 Run: #16127 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 44.9 seconds
 6e34af9
 🔄 Run: #16127 (attempt 1)

[github-actions]

Visual Regression

16 screenshots compared. See report for details.
View full report