[jdk21u-dev] RFR: 8314810: (fs) java/nio/file/Files/CopyInterference.java should use TestUtil::supportsLinks

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

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Commit messages:
 - Backport 096b7ff0977ba2455b329b0865a380a1fb4c99d4

Changes: https://git.openjdk.org/jdk21u-dev/pull/2534/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2534&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314810
  Stats: 18 lines in 1 file changed: 7 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2534.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2534/head:pull/2534

PR: https://git.openjdk.org/jdk21u-dev/pull/2534