CAS: configurable mount lease timing

[k-morozov]

Added settings to configure the CAS mount lease TTL and renewal period. The lightweight delete hard-restart test kills ClickHouse 100 times, and the default 30-second lease causes about 36.5 seconds of recovery waiting after every kill, making the test run for more than an hour. Test configurations can now use shorter lease timings to reduce CI duration. These settings are also useful in production because they control the balance between recovery time, object-storage delays, and lease renewal frequency.

Changelog category (leave one):

• Build/Testing/Packaging Improvement

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

Added settings to configure the CAS mount lease TTL and renewal period.

Documentation entry for user-facing changes

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CI/CD Options

Exclude tests:

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

Regression jobs to run:

• Fast suites (mostly <1h)
• Aggregate Functions (2h)
• Alter (1.5h)
• Benchmark (30m)
• CAS (content-addressed storage; Antalya only)
• ClickHouse Keeper (1h)
• Iceberg (2h)
• LDAP (1h)
• OAuth (5m)
• Parquet (1.5h)
• RBAC (1.5h)
• SSL Server (1h)
• S3 (2h)
• S3 Export (2h)
• Swarms (30m)
• Tiered Storage (2h)

[github-actions]

Workflow [PR], commit [e424083]