Update example project to RN@0.68

[hyochan]

Description

Update example project to React Ntaive 0.68

Related Issues

N/A

Tests

N/A

Checklist

Before you create this PR confirms that it meets all requirements listed below by checking the relevant checkboxes ([x]). This will ensure a smooth and quick review process.

• [x] I read the Contributor Guide and followed the process outlined there for submitting PRs.
• [x] Run yarn lint && yarn tsc
• [x] Run yarn test or yarn test -u if you need to update snapshot.
• [x] I am willing to follow-up on review comments in a timely manner.

[codecov[bot]]

Codecov Report

Merging #34 (d1e5f73) into main (75d14bb) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##              main       #34   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           36        36           
  Branches        13        13           
=========================================
  Hits            36        36           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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