version: the build tag is incorrectly added to the RocksDB version string

[isaac-io]

The changes in #156 were accidentally applied to the GetRocksVersionAsString() function instead of GetSpeedbVersionAsString(). This replaced ROCKSDB_PATCH with SPEEDB_PATCH (causing 7.2.2 to become 7.2.0), as well as added the tag in the wrong place (Speedb version: 2.1.0 (7.2.0-*-(main+4)-(#isaac/snapshot+1)) instead of Speedb version: 2.1.0-*-(main+4)-(#isaac/snapshot+1) (7.2.2)).

To Reproduce

1. Build db_bench on any branch containing build: add a build tag into the version for non-release builds #156
2. Run it and see the log file

Expected behavior

The RocksDB version patch isn't replaced, and the tag is applied to the Speedb version rather than the RocksDB one.

Additional context

N/A

[isaac-io]

@erez-speedb does this means that you'll need to make changes to the way the tag is extracted and shown in the admin site?