RFR: 8340185: Use make -k on GHA to catch more build errors

Tue Apr 8 15:00:28 UTC 2025

When building the JDK on GHA, we should use `make -k` to continue building as much as possible in case of failure, to avoid having developers resubmitting one fix after another.

The additional cost of continuing to build even in a failed build is pretty small compared to the overhead of having to resubmit the entire GHA several times.

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Commit messages:
 - 8340185: Use make -k on GHA to catch more build errors

Changes: https://git.openjdk.org/jdk/pull/24512/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24512&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340185
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24512.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24512/head:pull/24512

PR: https://git.openjdk.org/jdk/pull/24512