[jfx18] RFR: 8280280: Update boot JDK to 17.0.2

[Kevin Rushforth]

JDK 17.0.2 shipped yesterday as part of the January CPU release. We should update the JavaFX 18 build to use that version, so this is targeted for `jfx18`.

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Commit messages:
 - 8280280: Update boot JDK to 17.0.2

Changes: https://git.openjdk.java.net/jfx/pull/721/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx&pr=721&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8280280
  Stats: 11 lines in 2 files changed: 0 ins; 0 del; 11 mod
  Patch: https://git.openjdk.java.net/jfx/pull/721.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/721/head:pull/721

PR: https://git.openjdk.java.net/jfx/pull/721