Change logic in WorkLoad retrieval when OwnerReference of Pod is no Controller

[waodim]

Description

Respective ticket: https://dt-rnd.atlassian.net/browse/K8S-9998

Because we normally assign the podName to the workload info in a certain corner case (when we have a ownerreference which is no controller) it can occur that the DT_WORKLOAD_KIND env var is set to empty.

This is fixed by simply using GenerateName instead of Name.

How can this be tested?

• unit tests
• I am not really sure how to properly test it otherwise at it seems to be a corner case which needs special set up

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.30%. Comparing base (7e7e54f) to head (19771da).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3170      +/-   ##
==========================================
- Coverage   59.30%   59.30%   -0.01%     
==========================================
  Files         319      319              
  Lines       17477    17481       +4     
==========================================
+ Hits        10365    10367       +2     
- Misses       5947     5948       +1     
- Partials     1165     1166       +1     

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[0sewa0]

<This was just a draft 😅 moved comment to the line>

[StefanHauth]

LGTM

[aorcholski]

line 93

t.Run("should be empty if owner is not well known", func(t *testing.T) {
                 vvvv
t.Run("should be unknown if owner is not well known", func(t *testing.T) {