RFR: CODETOOLS-7903351: JMH: Update pre-integration testing workflows [v2]

[Aleksey Shipilev]

> Time to update our workflows: new JDKs, new OSes, new GH plugins.

Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:

  Drop JDK 7 from testing

-------------

Changes:
  - all: https://git.openjdk.org/jmh/pull/84/files
  - new: https://git.openjdk.org/jmh/pull/84/files/15943288..59852738

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmh&pr=84&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmh&pr=84&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jmh/pull/84.diff
  Fetch: git fetch https://git.openjdk.org/jmh pull/84/head:pull/84

PR: https://git.openjdk.org/jmh/pull/84