Use newer HAProxy config

[git001]

In the Configuring haproxy load balancer in front of ha artifactory cluster question was requested how to migrate to a newer HAProxy version.

The original answer from JFrog Support is from 2018-02-05 How to configure HAProxy with Artifactory? which looks wrong because there are some missing characters.

# wrong
reqirep ^([^ :]*) /v2(.*$) 1 /artifactory/api/docker/docker/v22
# right
reqirep ^([^ :]*) /v2(.*$) \1 /artifactory/api/docker/docker/v22\1

I assume that the HAProxy config for the knowledge-base article is this file https://github.com/jfrog/artifactory-scripts/blob/master/proxyexamples/haproxy/haproxy-ports.cfg

In general should the config be adopted to the new HAProxy versions.
This means.

• replace reqadd with http-request set-header
• replace reqirep with http-request replace*