RFR: 7903960: JMH: Add Maven Wrapper integration

[Volkan Yazici]

Adds Maven Wrapper integration. See the ticket description for details.

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Commit messages:
 - Update the Maven Wrapper to `3.3.4`
 - Fix copyright years
 - Add Maven Wrapper integration

Changes: https://git.openjdk.org/jmh/pull/154/files
  Webrev: https://webrevs.openjdk.org/?repo=jmh&pr=154&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903960
  Stats: 581 lines in 41 files changed: 497 ins; 0 del; 84 mod
  Patch: https://git.openjdk.org/jmh/pull/154.diff
  Fetch: git fetch https://git.openjdk.org/jmh.git pull/154/head:pull/154

PR: https://git.openjdk.org/jmh/pull/154