RFR: 8366704: Bump timeout on TestInheritFD

[Leo Korinth]

I missed bumping the manual timeout on the subprocess. It is now 60 seconds, just as before the change of the timeout factor.

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Commit messages:
 - 8366704: Bump timeout on TestInheritFD

Changes: https://git.openjdk.org/jdk/pull/27057/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27057&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8366704
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27057.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27057/head:pull/27057

PR: https://git.openjdk.org/jdk/pull/27057