Bump codecov/codecov-action from v6.0.0 to v7.0.0

[Copilot]

Bumps codecov/codecov-action in .github/workflows/validate.yml from v6.0.0 (57e3a136) to v7.0.0 (fb8b3582).

Description

• .github/workflows/validate.yml: Update codecov/codecov-action pin to fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0

Supporting information

• codecov-action v7.0.0 release notes

Testing instructions

CI will validate the action runs correctly on merge.

Other information

No API or behavioral changes — version bump only. The upstream release notes note a key account migration from codecovsecurity to codecovsecops for GPG signing.

Best Practices Checklist

We're trying to move away from some deprecated patterns in this codebase. Please
check if your PR meets these recommendations before asking for a review:

• Any new files are using TypeScript (.ts, .tsx).
• Avoid propTypes and defaultProps in any new or modified code.
• Tests should use the helpers in src/testUtils.tsx (specifically initializeMocks)
• Do not add new fields to the Redux state/store. Use React Context to share state among multiple components.
• Use React Query to load data from REST APIs. See any apiHooks.ts in this repo for examples.
• All new i18n messages in messages.ts files have a description for translators to use.
• Avoid using ../ in import paths. To import from parent folders, use @src, e.g. import { initializeMocks } from '@src/testUtils'; instead of from '../../../../testUtils'

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.62%. Comparing base (94900a0) to head (0a7cf44).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #3092    +/-   ##
========================================
  Coverage   95.61%   95.62%            
========================================
  Files        1391     1392     +1     
  Lines       33077    33131    +54     
  Branches     7444     7706   +262     
========================================
+ Hits        31628    31681    +53     
- Misses       1396     1397     +1     
  Partials       53       53            

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