fix(deps): update metro to v0.9.3 (#5967)
* fix(deps): update metro to v0.9.3
* R8: allowshrinking to fix compilation issue.
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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Benoit Marty <benoit@matrix.org>