RFR: 8343781: Add since checker test to the Serviceability area modules [v2]

[Nizar Benalla]

> Can I please get a review for this PR that add tests to verify the value of `@since` tags to the Serviceability area modules. The test is described in this [email](https://mail.openjdk.org/pipermail/jdk-dev/2024-October/009474.html). This issue is similar to JDK-8341399, JDK-8331051 and JDK-8343442.
> 
> The benefit from this is helping API authors and reviewer validate the accuracy of `@since` in their source code (and subsequently, in the generated documentation). And lessen the burden on Reviewers.
> 
> The test has been added for `java.base` and a few other modules and has helped catch some bugs before they make it to the JDK.
> 
> TIA

Nizar Benalla has updated the pull request incrementally with two additional commits since the last revision:

 - fix mistake in module name passed to jdk.jconsole test
 - Add backticks to mentions of `@since`, to avoid jtreg mistaking it with a jtreg tag
   
   Revert "remove backticks"
   
   This reverts commit 0abe3080391e83cae62253f56c28d98efa0ed253.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21983/files
  - new: https://git.openjdk.org/jdk/pull/21983/files/0abe3080..4aa468f0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21983&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21983&range=00-01

  Stats: 13 lines in 12 files changed: 0 ins; 0 del; 13 mod
  Patch: https://git.openjdk.org/jdk/pull/21983.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21983/head:pull/21983

PR: https://git.openjdk.org/jdk/pull/21983