RFR: 8354257: xctracenorm profiler not working with JDK JMH benchmarks

[Galder Zamarreño]

Avoid filtering out xml files at the root of the JMH folder, in order to get the `default.instruments.template.xml` file bundled in the JMH core jar to support xtrace profiler.

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Commit messages:
 - 8354257: xctracenorm profiler not working with JDK JMH benchmarks

Changes: https://git.openjdk.org/jdk/pull/24571/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24571&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354257
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24571.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24571/head:pull/24571

PR: https://git.openjdk.org/jdk/pull/24571