RFR: 8339515: [TestBug] Convert web tests to JUnit 5 [v7]

[Jay Bhaskar]

> Successfully converted web tests from JUnit 4 to JUnit 5, ensuring all tests are fully compliant with the JUnit 5 framework.

Jay Bhaskar has updated the pull request incrementally with one additional commit since the last revision:

  remove old juini4 imports

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1567/files
  - new: https://git.openjdk.org/jfx/pull/1567/files/780ef842..7206657e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1567&range=06
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1567&range=05-06

  Stats: 3 lines in 2 files changed: 0 ins; 3 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1567.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1567/head:pull/1567

PR: https://git.openjdk.org/jfx/pull/1567