chore: remove yarn.lock files from examples

[bednar]

Proposed Changes

This PR removes yarn.lock files from the examples. We prefer not to include them here due to potential security vulnerabilities in dependencies. Managing these with Dependabot would require us to implement CI tests for the examples, which is not our current practice.

Actual security issues for examples:

Checklist

• [ ] Rebased/mergeable
• [ ] Tests pass
• [ ] Commit messages are conventional
• [ ] Sign CLA (if not already signed)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.47%. Comparing base (7c89de0) to head (0041809).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #336 +/- ## ======================================= Coverage 96.47% 96.47% ======================================= Files 23 23 Lines 907 907 Branches 214 214 ======================================= Hits 875 875 Misses 7 7 Partials 25 25 ```

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