RFR: 8345693: Update JCov for class file version 69

[Alexandre Iline]

Use a CI promoted build.

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Commit messages:
 - JDK-8345693: Update JCov for class file version 69

Changes: https://git.openjdk.org/jdk/pull/22625/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22625&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345693
  Stats: 7 lines in 1 file changed: 3 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/22625.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22625/head:pull/22625

PR: https://git.openjdk.org/jdk/pull/22625