[jdk17u] RFR: 8276130: Fix Github Actions of JDK17u to account for update version scheme

[Thomas Stuefe]

On Thu, 28 Oct 2021 20:28:00 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> With the release of 17.0.1, the version number of jdk17u now does not only contain the feature part but also interim and update. This fix will unbreak github actions.

Seems straightforward, and you tested it, right?

Could this be broken down into multiple lines? (no problem if not, change is fine as it is).

Cheers, Thomas

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Marked as reviewed by stuefe (Reviewer).

PR: https://git.openjdk.java.net/jdk17u/pull/218