RFR: 8367988: NewFileSystemTests.readOnlyZipFileFailure fails when run by root user [v2]

[Francesco Andreuzzi]

> I propose a small patch to skip a tier2 test which fails when it runs as the root user. The test expects an exception when it tries to open a read-only file as `rw`, but this does not happen for the root user.

Francesco Andreuzzi has updated the pull request incrementally with one additional commit since the last revision:

  import

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27376/files
  - new: https://git.openjdk.org/jdk/pull/27376/files/8e356f79..21d104a0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27376&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27376&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27376.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27376/head:pull/27376

PR: https://git.openjdk.org/jdk/pull/27376