Fix pod anti affinity

[ahmed-mez]

What does this PR do?

• Make sure we set the correct labels for CLC runner pod anti affinity
• Remove the default pod anti affinity from the DCA, it's not required - two DCAs can live on the same node

Motivation

Before this fix two CLC runners can be scheduled on the same node, which messes up the clc dispatching

Additional Notes

Can be easily tested on a 1 node cluster

[github-actions]

This pull request contains a valid label.

[github-actions]

This pull request contains a valid label.

[github-actions]

This pull request contains a valid label.

[codecov-commenter]

Codecov Report

Merging #144 into master will increase coverage by 5.36%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #144      +/-   ##
==========================================
+ Coverage   58.42%   63.79%   +5.36%     
==========================================
  Files          31       31              
  Lines        4623     5372     +749     
==========================================
+ Hits         2701     3427     +726     
- Misses       1726     1747      +21     
- Partials      196      198       +2     

Flag	Coverage Δ
#unittests	63.79% <100.00%> (+5.36%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/controller/datadogagent/utils.go	89.07% <ø> (+5.91%)	⬆️
pkg/controller/datadogagent/clusteragent.go	78.35% <100.00%> (+2.87%)	⬆️
pkg/controller/datadogagent/clusterchecksrunner.go	73.91% <100.00%> (+1.27%)	⬆️
pkg/controller/datadogagent/systemprobe.go	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c762e52...63e90b4. Read the comment docs.

[github-actions]

This pull request contains a valid label.

[github-actions]

This pull request contains a valid label.