fix(#2549): consider renaming rules for timestamp extraction

[bossenti]

Purpose

fix #2549

When the timestamp property is renamed, this breaks the current timestamp extraction in the FileReplayAdapter since we are looking for the runtime name. Therefore, we need to account for renaming rules when extracting the timestamp from the source data with the correct key.

Remarks

PR introduces (a) breaking change(s): no

PR introduces (a) deprecation(s): no