ci: move phpunit-nodb to actions · nextcloud/server@487f4ee

Commit c89e535bb623a95de5b1f02225476221f44c2e4b is an autosquash commit: https://api.github.com/repos/nextcloud/server/commits/c89e535bb623a95de5b1f02225476221f44c2e4b

Commit 487f4ee19e566d03e5cc63e3f8a99c8c40df01d2 is an autosquash commit: https://api.github.com/repos/nextcloud/server/commits/487f4ee19e566d03e5cc63e3f8a99c8c40df01d2

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