Fix incorrect setting assignment in JoinSettings::updatePlanSettings

[vdimir]

Changelog category (leave one):

• Improvement

Changelog entry (a user-readable short description of the changes that goes into CHANGELOG.md):

Fix incorrect handling of settings max_joined_block_size_rows and max_joined_block_size_bytes during query plan serialization with experimental make_distributed_plan

Discovered together with @devcrafter

Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

[clickhouse-gh]

Workflow [PR], commit [dfe49c1]

Summary: ❌

job_name	test_name	status	info	comment
Stateless tests (amd_binary, ParallelReplicas, s3 storage, parallel)		failure
	01167_isolation_hermitage	FAIL
	Exception in test runner	FAIL
	Killed by signal (in clickhouse-server.log or clickhouse-server.err.log)	FAIL
	Fatal messages (in clickhouse-server.log or clickhouse-server.err.log)	FAIL