RFR: 8378276: Refactor test/jdk/java/net/httpclient/quic/ TestNG tests to JUnit [v3]

[Daniel Fuchs]

> TestNG tests located under test/jdk/java/net/httpclient/quic/ are refactored to use JUnit.
>  Mostly mechanical - a couple of `assertEquals` calls had to be turned into `assertArrayEquals`.

Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:

  Review feedback: redundant throws

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Changes:
  - all: https://git.openjdk.org/jdk/pull/29841/files
  - new: https://git.openjdk.org/jdk/pull/29841/files/4eee7696..dda2b0a9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29841&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29841&range=01-02

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29841.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29841/head:pull/29841

PR: https://git.openjdk.org/jdk/pull/29841