Bind the Figma access token to an environment variable (#2500)

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## Related Issue

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<!-- Fixes #0000 -->

## Summary

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Bind the Figma access token to an environment variable

## Details

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Code Connect CI 정상화를 위해 시크릿을 잡의 환경 변수에 바인딩합니다.

### Breaking change? (Yes/No)

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No

## References
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aware of -->

-
https://docs.github.com/ko/actions/security-for-github-actions/security-guides/using-secrets-in-github-actions#using-secrets-in-a-workflow

.github/workflows/code-connect.yml

@@ -27,3 +27,5 @@ jobs:
 
       - name: Code Connect
         run: yarn workspace @channel.io/bezier-react code-connect
+        env:
+          FIGMA_ACCESS_TOKEN: ${{ secrets.FIGMA_ACCESS_TOKEN }}