[jdk17u-dev] RFR: 8284603: [17u] Update Boot JDK used in GHA to 17.0.2

[Christoph Langer]

Update the Boot JDK used in GHA to 17.0.2

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Commit messages:
 - JDK-8284603

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/342/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=342&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8284603
  Stats: 11 lines in 1 file changed: 0 ins; 0 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/342.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/342/head:pull/342

PR: https://git.openjdk.java.net/jdk17u-dev/pull/342