[Core][deps] pin json-schema < 4.18

[scv119]

Why are these changes needed?

#33411 there is a risk ray client_server will crash with jsonschema >= 4.18

Related issue number

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• I've signed off every commit(by using the -s flag, i.e., git commit -s) in this PR.
• I've run scripts/format.sh to lint the changes in this PR.
• I've included any doc changes needed for https://docs.ray.io/en/master/.
• I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
• Testing Strategy
  • Unit tests
  • Release tests
  • This PR is not tested :(

[matthewdeng]

Exclude from the prerelease test as well?

ray/ci/env/install-core-prerelease-dependencies.sh

Lines 7 to 10 in 41c3b1e

	for dependency in attrs jsonschema aiosignal frozenlist requests protobuf
	do
	python -m pip install -U --pre --upgrade-strategy=eager $dependency
	done

[cadedaniel]

all test failures appear unrelated