RFR: 8320691: Timeout handler on Windows takes 2 hours to complete

[Daniel Jeliński]

The recent cdb versions do not support `.dump /f`:

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* .dump /f is not supported on a user mode process.                         *
*                                                                           *
* .dump /ma creates a complete memory dump of a user mode process.          *
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and after printing that message, cdb ignores the rest of the command line and never quits.

This PR updates the dump command to use the recommended `/ma` parameter. This allows the command to produce a dump and complete in a timely manner.

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Commit messages:
 - Update timeout handler for newer cdb

Changes: https://git.openjdk.org/jdk/pull/16806/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16806&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8320691
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/16806.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16806/head:pull/16806

PR: https://git.openjdk.org/jdk/pull/16806