Core fixes

[monoidic]

This PR fixes two issues:

• bot_debugger attempts to access a bot's private destination_queues attribute, despite it being public now
• changes in the passing of pipeline parameters made the load_balance parameter not work

[codecov-commenter]

Codecov Report

Merging #2027 (5303764) into develop (fc3abe4) will increase coverage by 0.01%.
The diff coverage is 80.00%.

@@             Coverage Diff             @@
##           develop    #2027      +/-   ##
===========================================
+ Coverage    76.06%   76.07%   +0.01%     
===========================================
  Files          425      425              
  Lines        22825    22824       -1     
  Branches      3024     3023       -1     
===========================================
+ Hits         17361    17364       +3     
+ Misses        4757     4754       -3     
+ Partials       707      706       -1     

Impacted Files	Coverage Δ
intelmq/lib/bot_debugger.py	20.52% <0.00%> (ø)
intelmq/lib/pipeline.py	64.70% <85.71%> (+0.89%)	⬆️

[ghost]

Thanks!

[ghost]

Cherry-picked in maintenance for the next bugfix release.