Commit hash is always added to reported version in log

[ronensc]

When FLP starts, it reports its build version, and the current format is always including the commit hash, even when it wasn't originally planned that way.

For example:

$ ./flowlogs-pipeline

Starting flowlogs-pipeline:
=====
Build Version: 0.1.10-7c78d63b-dirty
Build Date: 2023-11-20 12:09

It seems that the original plan was to have the following format:

<tag>[-<sha>][-dirty]

<tag>: The name of the most recent tag (stripping the prefix 'v')
<sha>: If HEAD is not pointed to a tag, then the hash of HEAD is added.
dirty: If the repository contains any changes, "-dirty" is added.

But since #426, this condition always evaluates as true, resuling in the addition of -<sha> in all cases. Do we want to keep it this way?

Same is true to the other components:
network-observability-operator

netobserv-ebpf-agent

network-observability-console-plugin