RFR: 8293361: GHA: dump config.log in case of configure failure

[Magnus Ihse Bursie]

If configure fails in GHA it is very hard to debug. Dumping the contents of config.log helps.

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Commit messages:
 - 8293361: GHA: dump config.log in case of configure failure

Changes: https://git.openjdk.org/jdk/pull/10165/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10165&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293361
  Stats: 19 lines in 4 files changed: 16 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/10165.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10165/head:pull/10165

PR: https://git.openjdk.org/jdk/pull/10165