[jdk18u] RFR: 8283037: Update jdk18u fix version to 18.0.2

[Rob McKenna]

8283037: Update jdk18u fix version to 18.0.2

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Commit messages:
 - 8283037: Update jdk18u fix version to 18.0.2

Changes: https://git.openjdk.java.net/jdk18u/pull/41/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=41&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8283037
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/41.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/41/head:pull/41

PR: https://git.openjdk.java.net/jdk18u/pull/41