chore(main): release arize-phoenix 4.0.0 (#3143)

* chore(main): release arize-phoenix 3.26.0

* update version for arize-phoenix to 4.0.0 and add release notes

* Update src/phoenix/version.py

* remove bootstrap sha

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Co-authored-by: Alexander Song <axiomofjoy@gmail.com>
Co-authored-by: Mikyo King <mikyo@arize.com>