[TASK] improve autoselect ip_address of interfaces

[genofire]

Description

#137

Motivation and Context

Checklist:

• My code follows the code style of this project.
• I have added also tests for my new code.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[genofire]

@Grotax would you like to test this PR?

[codecov-io]

Codecov Report

Merging #138 into master will increase coverage by 0.09%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #138      +/-   ##
==========================================
+ Coverage   73.68%   73.77%   +0.09%     
==========================================
  Files          47       47              
  Lines        1573     1571       -2     
==========================================
  Hits         1159     1159              
+ Misses        386      384       -2     
  Partials       28       28

Impacted Files	Coverage Δ
respond/collector.go	24.72% <0%> (+0.26%)	⬆️

[genofire]

@mweinelt Would you also test this PR ?

[Grotax]

Applied patch, removed ip_address from config.
Restarted - it works. 👍

[mweinelt]

@genofire It's difficult to do this within our automation tooling, so if Grotax review is sufficient I rather wouldn't.