Handle host/network is unreachable in integration tests

use std::filesystem::path in ConfigProcessor for filepath concatenation

add query_start_time_microseconds field to system.query_log & system.query_thread_log tables

Fix cmake ccache search.

Retries in s3 downloader

Lower binary size in "Arcadia" build

Pipes and creating sets

Many rows in totals

* Documentation for #10387, upd syntax by issues #12311, #12312

* Update docs/ru/sql-reference/statements/show.md
Co-authored-by: NAnna Devyatova <annadevyatova@yandex-team.ru>
Co-authored-by: NBayoNet <da-daos@yandex.ru>

RabbitMQ improvements

Bump binary image version

Lower binary size in debug build

This PR improves the way the ClickHouse config path,
preprocessed_configs path etc are being joined inside
`ConfigProcessor.cpp`.

Uses `std::filesystem::path` to join the paths instead of
standard string concatenation. This would improve path concatenation.
Current method of concatenation results in:

```bash
➜  clickhouse-server ls -latr
total 68
-rw-r--r--   1 root root  5587 Aug 31 05:00 users.xml
drwxr-xr-x 143 root root 12288 Sep  7 11:23 ..
lrwxrwxrwx   1 root root    41 Sep  7 11:23 preprocessed -> /var/lib/clickhouse//preprocessed_configs
drwxr-xr-x   2 root root  4096 Sep  7 11:23 users.d
-rw-r--r--   1 root root 34252 Sep  7 11:28 config.xml
drwxr-xr-x   4 root root  4096 Sep  7 11:28 .
drwxr-xr-x   2 root root  4096 Sep  7 11:28 config.d
```

The symlink `/var/lib/clickhouse//preprocessed_configs` will still work.
amd this PR is an improvement to the current method of path
concatenation.

More consistent invocation of skipBOMIfExists

Merging #11769 (Rank Correlation Spearman)

Multithreading implementation of Kafka engine

Remove dryrun event to update position

Also add one more timeout to perf test runner.