git: openjdk/loom: fibers: 2 new changesets

[duke]

Changeset: 42a2cf69
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-10-20 11:10:34 +0000
URL:       https://git.openjdk.org/loom/commit/42a2cf69f268627cd4867691453dc041188d72a7

Sync up FJP from pull/26479

! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java

Changeset: 00164b7e
Branch: fibers
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2025-10-20 11:11:17 +0000
URL:       https://git.openjdk.org/loom/commit/00164b7e8110e3b3806087d05130c82f7d29d2dd

API doc improvements, more tests

! src/java.base/share/classes/java/util/concurrent/StructuredTaskScope.java
! test/jdk/java/util/concurrent/StructuredTaskScope/StructuredTaskScopeTest.java