RFR: 8340391: Windows jcmd System.map and System.dump_map tests failing

[Kevin Walls]

New test is failing on Windows with ZGC: the regex for JAVAHEAP is not matching.

Matching "mapped", as well as "private", is testing OK for me: ZGC JAVAHEAP is not private in terms of Windows _MEMORY_BASIC_INFORMATION

Simple regex update to a new test which is failing - I'd like to push this as a trivial change.

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Commit messages:
 - 8340391: Windows jcmd System.map and System.dump_map tests failing

Changes: https://git.openjdk.org/jdk/pull/21073/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21073&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340391
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21073.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21073/head:pull/21073

PR: https://git.openjdk.org/jdk/pull/21073