Stable 26.3 - port the ARM dremio guard and fix the ClickBench cache path

[CarlosFelipeOR]

Two CI fixes for stable-26.3.

Skip test_dremio_engine on ARM — port of #1466, which reached every antalya branch and never reached this one. Unblocks Integration tests (arm_binary, distributed plan, 3/4), cancelled at the 6h limit on
every run since 20/07. Details in #2412.

Keep filesystem_caches_path out of the ClickBench override — the cherry-pick of ClickHouse#105088 in #2411 pointed both entries at /dev/shm/clickhouse/, and the server stops starting. Details in #2407.

Closes #2407.
Closes #2412.

Changelog category (leave one):

• CI Fix or Improvement (changelog entry is not required)

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 [4c2d531]

[CarlosFelipeOR]

QA Verification

Both fixes verified.

ARM guard — Integration tests (arm_binary, distributed plan, 3/4) passed in 96 min. That shard had been cancelled at the 6h limit on every run since 20/07.

ClickBench — the job only exists in MasterCI, so it does not run on PR workflows. I ran it locally on this branch with
python3 -m ci.praktika run "ClickBench (amd_release)" --workflow MasterCI:

Success
Failures: 0/4

Without the fix the server never starts: Code: 36. DB::Exception: The total capacity of the disk containing cache path /dev/shm/clickhouse/local_cache/ is less than the specified max_size 22548578304 bytes.

Adding the verified label.