TickDB client has incorrect logging - missing %s placeholders

[Here](https://github.com/finos/TimeBase-CE/blob/release-6.2/java/timebase/client/src/main/java/com/epam/deltix/qsrv/hf/tickdb/comm/client/SafeDisconnectableEventHandler.java#L42)

and [here](https://github.com/finos/TimeBase-CE/blob/release-6.2/java/timebase/client/src/main/java/com/epam/deltix/qsrv/hf/tickdb/comm/client/SafeDisconnectableEventHandler.java#L57)

Consider using https://github.com/epam/gflog/blob/main/SKILL.md

User visible defect:

```
GapFillerServiceIntTest > backfillNoDataIsNonFatal() STANDARD_ERROR
java.lang.IllegalStateException: log entry is committed
at com.epam.deltix.gflog.core.service.LogLocalEntry.warnCommitted(LogLocalEntry.java:984)
at com.epam.deltix.gflog.core.service.LogLocalEntry.verifyNotCommitted(LogLocalEntry.java:967)
at com.epam.deltix.gflog.core.service.LogLocalEntry.with(LogLocalEntry.java:761)
at com.epam.deltix.gflog.core.service.LogLocalEntry.with(LogLocalEntry.java:12)
at com.epam.deltix.qsrv.hf.tickdb.comm.client.SafeDisconnectableEventHandler.onDisconnected(SafeDisconnectableEventHandler.java:59)
at com.epam.deltix.qsrv.hf.tickdb.comm.client.TickDBClient$ConnectionNotificationTask.run(TickDBClient.java:1945)
at com.epam.deltix.util.concurrent.QuickExecutor$Worker.run(QuickExecutor.java:266)
at java.base/java.lang.Thread.run(Thread.java:1583)
```

Start with java/timebase/client/src/main/java/com/epam/deltix/qsrv/hf/tickdb/comm/client/SafeDisconnectableEventHandler.java at lines 42 and 57, then read gflog's SKILL.md for the logging-call requirements. Run GapFillerServiceIntTest, especially backfillNoDataIsNonFatal(), to reproduce the committed log entry failure. Done means both logging calls follow the required placeholders and the test no longer reports this exception.

Written by the indexing model from the issue text.