chore(version): Update package versions [skip ci]

platform/core/CHANGELOG.md

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 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [3.9.0-beta.21](https://github.com/OHIF/Viewers/compare/v3.9.0-beta.20...v3.9.0-beta.21) (2024-05-24)
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+### Features
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+* **types:** typed app config ([#4171](https://github.com/OHIF/Viewers/issues/4171)) ([8960b89](https://github.com/OHIF/Viewers/commit/8960b89911a9342d93bf1a62bec97a696f101fd4))
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 # [3.9.0-beta.20](https://github.com/OHIF/Viewers/compare/v3.9.0-beta.19...v3.9.0-beta.20) (2024-05-24)
 
 **Note:** Version bump only for package @ohif/core