chore(main): release flagd-core 0.2.3

[github-actions[bot]]

:robot: I have created a release beep boop

0.2.3 (2024-07-08)

✨ New Features

• Change fractional custom op from percentage-based to relative weighting. #946 (#954) (0e9bc84)

🧹 Chore

• update flagd json schema (#994) (95fc808)

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[github-actions[bot]]

:robot: Release is at https://github.com/open-feature/js-sdk-contrib/releases/tag/flagd-core-v0.2.3 :sunflower: