RFR: 8332749: Broken link in MemorySegment.Scope.html

[Per Minborg]

This PR proposes to fix a broken link in the `MemorySegment.Scope` class.

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Commit messages:
 - Fix link to section

Changes: https://git.openjdk.org/jdk/pull/19366/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19366&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332749
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19366.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19366/head:pull/19366

PR: https://git.openjdk.org/jdk/pull/19366