[FLINK-28713][tests] Remove unused curator-test dependency

[zentol]

Removes an unused dependency.

end-to-end-tests-common-elasticsearch now has a direct compile dependency on junit-jupiter, which previously got pulled in by curator-test.
sql-client no longer excludes guava from hadoop-common, because guava was previously pulled in by curator-test and is still required by the annoying KerberosDelegationTokenManager which automatically activates when hadoop-common is on the classpath.

Core benefit is one less dependency being pulled into user projects (which also pulls in log4j1).

[flinkbot]

CI report:

• 8bfbf41 Azure: SUCCESS

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[alpinegizmo]

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