Update openjdk
Update openjdk

Changes:

- https://github.com/docker-library/openjdk/commit/93d9f8b: Update 20 to 20-ea+20
- https://github.com/docker-library/openjdk/commit/89d5328: Merge pull request https://github.com/docker-library/openjdk/pull/516 from infosiftr/ci-updates
- https://github.com/docker-library/openjdk/commit/947ffaa: Switch to "$GITHUB_OUTPUT"; update actions/checkout to v3

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