Fix secrets masking in icebergS3Cluster and icebergAzureCluster table functions.

[MikhailBurdukov]

Without the fix secrets don't mask for icebergS3Cluster and icebergAzureCluster functions.

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

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

Fix secrets masking in icebergS3Cluster and icebergAzureCluster table functions.

Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

[clickhouse-gh]

Workflow [PR], commit [24805b0]

Summary: ❌

job_name	test_name	status	info	comment
Integration tests (amd_binary, 4/5)		failure
	test_broken_projections/test.py::test_broken_ignored_replicated	FAIL
Integration tests (arm_binary, distributed plan, 4/4)		failure
	test_s3_plain_rewritable/test.py::test[s3_plain_rewritable_with_metadata_cache-data_with_cache/]	FAIL

[evillique]

Failures:

• Test test_broken_projections/test.py::test_broken_ignored_replicated is flaky #66835
• Flaky test: test_s3_plain_rewritable/test.py::test #85092