Antalya 26.1 - Allow cluster request with undefined cluster on secondary nodes

[ianton-ru]

Changelog category (leave one):

• Improvement

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

Allow cluster request with undefined cluster on secondary nodes

Documentation entry for user-facing changes

Solved #1482
In cluster requests (s3Cluster, icebergCluster, etc), cluster is used only on initiator, secondary nodes does not use cluster.
Checking cluster name can be disabled on secondary nodes.
Same as #1479, but for antalya-26.1 branch

CI/CD Options

Exclude tests:

• Fast test
• Integration Tests
• Stateless tests
• Stateful tests
• Performance tests
• All with ASAN
• All with TSAN
• All with MSAN
• All with UBSAN
• All with Coverage
• All with Aarch64
• All Regression
• Disable CI Cache

Regression jobs to run:

• Fast suites (mostly <1h)
• Aggregate Functions (2h)
• Alter (1.5h)
• Benchmark (30m)
• ClickHouse Keeper (1h)
• Iceberg (2h)
• LDAP (1h)
• Parquet (1.5h)
• RBAC (1.5h)
• SSL Server (1h)
• S3 (2h)
• Tiered Storage (2h)

[github-actions]

Workflow [PR], commit [a84f8be]