RFR: 8287401: jpackage tests failing on Windows due to powershell issue

[Alexey Semenyuk]

Run a script extracting icons from executables as PowerShell command line rather than a script

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Commit messages:
 - 8287401: jpackage tests failing on Windows due to powershell issue

Changes: https://git.openjdk.org/jdk19/pull/26/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk19&pr=26&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287401
  Stats: 8 lines in 1 file changed: 0 ins; 3 del; 5 mod
  Patch: https://git.openjdk.org/jdk19/pull/26.diff
  Fetch: git fetch https://git.openjdk.org/jdk19 pull/26/head:pull/26

PR: https://git.openjdk.org/jdk19/pull/26