RFR: 8375575: AttachNotSupportedException constructor missing @since 27

[Yasumasa Suenaga]

The changes for [JDK-8373867](https://bugs.openjdk.org/browse/JDK-8373867) are missing `@since 27`. This PR makes trivial change to add it.

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Commit messages:
 - 8375575: AttachNotSupportedException constructor missing @since 27

Changes: https://git.openjdk.org/jdk/pull/29289/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29289&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8375575
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/29289.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29289/head:pull/29289

PR: https://git.openjdk.org/jdk/pull/29289